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.chart-card,\n .signal-card,\n .compare-card,\n .timeline-card,\n .reviewer-card {\n padding: 18px;\n border-radius: 22px;\n }\n\n .reviewer-card {\n grid-template-columns: 1fr;\n justify-items: start;\n }\n\n .reviewer-avatar {\n width: 76px;\n height: 76px;\n border-radius: 20px;\n }\n\n .faq-card summary {\n padding: 16px 18px;\n }\n\n .faq-card p {\n padding-left: 18px;\n padding-right: 18px;\n }\n\n th,\n td {\n padding-right: 10px;\n }\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"page-shell\">\n <main class=\"container\">\n <section class=\"hero\">\n <div class=\"mobile-toc-wrap\">\n <button class=\"button mobile-toc-button\" id=\"mobileTocButton\" type=\"button\" aria-expanded=\"false\" aria-controls=\"mobileTocPanel\">\n <span>On this page<\/span>\n <span>\u2630<\/span>\n <\/button>\n <div class=\"mobile-toc-panel\" id=\"mobileTocPanel\">\n <a class=\"toc-link\" href=\"#overview\">The big picture<\/a>\n <a class=\"toc-link\" href=\"#may\">What happened in May<\/a>\n <a class=\"toc-link\" href=\"#june\">What happened in June<\/a>\n <a class=\"toc-link\" href=\"#patterns\">What the attacks reveal<\/a>\n <a class=\"toc-link\" href=\"#users\">What users should learn<\/a>\n <a class=\"toc-link\" href=\"#projects\">What projects should fix<\/a>\n <a class=\"toc-link\" href=\"#takeaway\">Key takeaway<\/a>\n <a class=\"toc-link\" href=\"#faq\">FAQ<\/a>\n <a class=\"toc-link\" href=\"#reviewed-by\">Reviewed by<\/a>\n <a class=\"toc-link\" href=\"#sources\">Sources<\/a>\n <div class=\"mobile-toc-cta\">\n <div class=\"sidebar-cta\">\n <h3>Buy crypto<\/h3>\n <p>Open Guardarian directly.<\/p>\n <a class=\"button button-primary\" href=\"https:\/\/guardarian.com\/\">Open Guardarian<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"hero-grid\">\n <div class=\"hero-copy\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Research article<\/div>\n <div class=\"hero-copy-main\">\n <h1>Crypto Hacks in May and June 2026<\/h1>\n <p>\n May and early June 2026 did not match April\u2019s extreme hack losses, but they still exposed the same fragile\n layers of Web3 security: bridges, key management, privileged controls, and complex modules that fail in very\n expensive ways when assumptions break.\n <\/p>\n <\/div>\n <\/div>\n\n <div class=\"hero-side\">\n <div class=\"metrics-grid\">\n <article class=\"metric-card\">\n <span>May tracker range<\/span>\n <strong>$68.3M-$81.7M<\/strong>\n <p>CertiK-linked reporting came in lower than PeckShield-linked reporting, which is a methodology point, not a contradiction.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>April context<\/span>\n <strong>$629.7M<\/strong>\n <p>April still dwarfed May. That drop looks comforting until you remember that \u201ccalmer\u201d still meant tens of millions lost.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>Largest sourced case<\/span>\n <strong>$36M<\/strong>\n <p>Humanity Protocol was the biggest publicly documented June incident in USD terms among the sources used here.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>Recurring weak points<\/span>\n <strong>Bridges, keys, admin<\/strong>\n <p>Across the best-documented cases, the market kept running into the same three failure modes in different costumes.<\/p>\n <\/article>\n <\/div>\n <\/div>\n <\/div>\n <\/section>\n\n <div class=\"layout\">\n <div class=\"content\">\n <section class=\"section\" id=\"overview\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Overview<\/div>\n <h2>The Big Picture<\/h2>\n <p>This was not the worst period in crypto history. It was something subtler and, in its own way, just as revealing.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>May and early June 2026 reminded the market of an expensive truth: crypto systems can be decentralized at the protocol level while still failing through very human bottlenecks. A compromised device, a badly validated bridge message, a privileged mint path, or a fragile module can still turn \u201ctrustless\u201d infrastructure into a loss report.<\/p>\n <p>The cleanest source-backed monthly figure for <strong>May 2026<\/strong> comes from <strong>CertiK-linked reporting<\/strong>, which put exploit losses at <strong>$68.3 million<\/strong>, down almost 90% from April\u2019s roughly <strong>$650 million<\/strong>. The same report said about <strong>$2.6 million<\/strong> came from phishing and about <strong>$9.4 million<\/strong> was recovered or returned. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <p>A broader <strong>PeckShield-linked<\/strong> figure, reported by DeFi Planet, put <strong>May 2026<\/strong> losses closer to <strong>$81.7 million<\/strong> across <strong>40 major hacks<\/strong>. That higher total is useful, but it should be read as a different methodology rather than a direct correction of the CertiK number. <span class=\"source-inline\">[<a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \/ PeckShield-linked coverage<\/a>]<\/span><\/p>\n <p>For <strong>June 2026<\/strong>, the public picture is less tidy. Humanity Protocol alone accounted for roughly <strong>$36 million<\/strong> in reported losses. Syscoin\u2019s bridge incident involved the unauthorized release of <strong>5 billion SYS<\/strong>, but the official postmortem centers on recovery and burn rather than a neat realized-loss figure. Gnosis Pay publicly confirmed its incident and promised reimbursement, but early coverage focused more on the exploit path and response than on a final headline dollar amount. That makes June very important, but not yet cleanly comparable on one single tracker-style number. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Quantstamp-linked reporting<\/a>, <a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin postmortem<\/a>, <a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Gnosis<\/a>]<\/span><\/p>\n <\/article>\n\n <div class=\"signal-grid\">\n <article class=\"signal-card\">\n <span>April baseline<\/span>\n <strong>$629.7M<\/strong>\n <p>April was the spike month, which makes May\u2019s cooldown look dramatic even though security conditions stayed fragile.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>May consensus<\/span>\n <strong>Down sharply<\/strong>\n <p>Both main public tracker families showed a major month-over-month drop, even if they disagreed on the exact total.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>June headline<\/span>\n <strong>Humanity<\/strong>\n <p>The largest well-documented June case in the source set is still the private-key-driven attack on Humanity Protocol.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>Security lesson<\/span>\n <strong>Ops risk matters<\/strong>\n <p>The biggest pattern here is not just buggy code. It is also compromised laptops, keys, and privileged workflows.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">Monthly loss context<\/div>\n <h3>April to May cooled down, but not because crypto suddenly became safe<\/h3>\n <\/div>\n <p>USD values below come from public reporting, with April based on DeFiLlama and May shown through two tracker methodologies.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>April 2026 (DeFiLlama \/ Cointelegraph)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$629.7M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>May 2026 (CertiK-linked reporting)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 10.9%;\"><\/div><\/div>\n <div class=\"bar-value\">$68.3M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>May 2026 (PeckShield-linked reporting)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 13%;\"><\/div><\/div>\n <div class=\"bar-value\">$81.7M<\/div>\n <\/div>\n <\/div>\n <div class=\"legend-row\">\n <div class=\"legend-pill\"><span class=\"legend-dot\"><\/span> April figure uses DeFiLlama data cited by Cointelegraph<\/div>\n <div class=\"legend-pill\"><span class=\"legend-dot\"><\/span> May range reflects different tracker methodologies<\/div>\n <\/div>\n <\/article>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Methodology note<\/span>\n <h3>Why the May number is a range<\/h3>\n <p>Tracker totals differ because firms count incidents, phishing, recoveries, and \u201cmajor attacks\u201d differently. That is normal in crypto-security reporting, and pretending otherwise would create fake precision.<\/p>\n <\/article>\n <article class=\"compare-card\">\n <span>Why no clean YOY chart<\/span>\n <h3>We chose accuracy over decorative comparison<\/h3>\n <p>A strict May-June 2025 versus May-June 2026 comparison would require the same tracker and the same public methodology for both periods. That like-for-like series was not cleanly available in the primary or best public sources used here, so this page uses month-over-month context instead.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"may\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> May 2026<\/div>\n <h2>What Happened in May 2026?<\/h2>\n <p>May was quieter than April, but it was still full of bridge failures, protocol exploits, and key-driven incidents.<\/p>\n <\/div>\n\n <div class=\"subgrid\">\n <article class=\"article-card prose\">\n <h3>The strongest source-backed May reading<\/h3>\n <p>Cointelegraph\u2019s June 1 write-up of CertiK\u2019s monthly data is the clearest public May summary in the source set. It says May exploit losses fell to <strong>$68.3 million<\/strong>, that <strong>cross-chain bridges<\/strong> were the most targeted category at <strong>$28.6 million<\/strong> or <strong>42%<\/strong> of total losses, and that <strong>code vulnerabilities<\/strong> represented roughly <strong>66%<\/strong> of value lost. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <p>It also says <strong>wallet or private-key compromises<\/strong> were the second-most costly attack vector at about <strong>$13.7 million<\/strong>. That point matters because it pushes the story away from \u201csmart contracts are buggy\u201d and toward \u201csecurity operations are still breaking the system.\u201d<\/p>\n <\/article>\n\n <article class=\"quote-card prose\">\n <h3>What the broader tracker view adds<\/h3>\n <blockquote>\n <p>\n PeckShield-linked coverage put May at roughly $81.7 million across 40 major attacks, which suggests the calmer month was still not a small month.\n <\/p>\n <\/blockquote>\n <p>The exact total depends on what each tracker includes, but both public reporting lines agree on the broader pattern: May was far below April, yet still structurally dominated by the same bridge and infrastructure weaknesses. <span class=\"source-inline\">[<a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \/ PeckShield-linked coverage<\/a>]<\/span><\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">Largest sourced May incidents<\/div>\n <h3>The month\u2019s best-documented losses still clustered around bridges and execution infrastructure<\/h3>\n <\/div>\n <p>These are the clearest public USD figures from the source set, not an exhaustive top-ten leaderboard.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>Verus Ethereum Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$11.58M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>THORChain<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 87.2%;\"><\/div><\/div>\n <div class=\"bar-value\">$10.1M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>TrustedVolumes<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 57.9%;\"><\/div><\/div>\n <div class=\"bar-value\">$6.7M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>Gravity Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 46.6%;\"><\/div><\/div>\n <div class=\"bar-value\">$5.4M<\/div>\n <\/div>\n <\/div>\n <p class=\"scope-note\">Those values come from public reporting around the individual incidents. Other trackers published larger May incident lists, but not every item had equally accessible primary documentation.<\/p>\n <\/article>\n\n <div class=\"table-card prose\">\n <div class=\"table-scroll\">\n <table>\n <thead>\n <tr>\n <th>Project<\/th>\n <th>Reported loss<\/th>\n <th>Why it mattered<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Verus Ethereum Bridge<\/td>\n <td>$11.58M<\/td>\n <td>Fraudulent cross-chain transfer instructions reportedly tricked the bridge into releasing funds from reserves. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>THORChain<\/td>\n <td>$10.1M<\/td>\n <td>Another reminder that cross-chain liquidity systems remain exposed when complex multi-chain execution paths break. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/thorchain-halts-trading-zachxbt-flags-10m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>TrustedVolumes<\/td>\n <td>$6.7M<\/td>\n <td>A third-party resolver exploit showed how losses can come from surrounding execution infrastructure, not just the core protocol brand users recognize. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/1inch-fusion-resolver-trusted-volumes-floats-bounty-after-67m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>Gravity Bridge<\/td>\n <td>$5.4M<\/td>\n <td>Early reporting pointed to a suspected signing-key compromise, reinforcing the operational-security angle of the month. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/cosmos-based-gravity-bridge-halts-bridge-after-reported-54m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"june\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> June 2026<\/div>\n <h2>What Happened in June 2026?<\/h2>\n <p>June\u2019s most important cases were less about a single category and more about how many ways trust can break around the protocol edge.<\/p>\n <\/div>\n\n <div class=\"subgrid\">\n <article class=\"article-card prose\">\n <h3>Humanity Protocol was the clearest public June shock<\/h3>\n <p>Humanity Protocol is the largest well-documented June incident in the source set. Cointelegraph\u2019s June 14 coverage, citing Quantstamp, put the loss at <strong>$36 million<\/strong> and said the compromise began with a phishing email disguised as a Bithumb token lockup update. The attachment reportedly installed malware that gave the attacker remote access to a compromised laptop. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Quantstamp-linked reporting<\/a>]<\/span><\/p>\n <p>The project\u2019s own June 12 incident summary adds more structure: Quantstamp was engaged on <strong>June 8<\/strong>; the attacker used stolen key material to upgrade contracts, mint and sell <strong>$H<\/strong> across Ethereum and BNB Smart Chain, and control BSC-side signers plus ProxyAdmin-related functionality. Humanity\u2019s own summary also says the attacker drained roughly 150 operational wallets and later consolidated proceeds. <span class=\"source-inline\">[<a href=\"https:\/\/www.humanity.org\/hincidentupdate\" rel=\"nofollow noopener\" target=\"_blank\">Humanity official incident update<\/a>]<\/span><\/p>\n <\/article>\n\n <article class=\"article-card prose\">\n <h3>Syscoin was a bridge-logic lesson, not just a price headline<\/h3>\n <p>Syscoin\u2019s official postmortem says the bridge incident on <strong>June 7, 2026<\/strong> resulted in the unauthorized release of <strong>5 billion SYS<\/strong> on the UTXO side. The postmortem attributes the exploit to a <strong>cross-layer interpretation mismatch<\/strong> between Syscoin Core and the NEVM relay, where duplicate asset commitments created ambiguity that the two components resolved differently. <span class=\"source-inline\">[<a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin postmortem<\/a>]<\/span><\/p>\n <p>That same postmortem is important for another reason: it says the returned funds were sent back to the official recovery address and then burned to a standard <code>OP_RETURN<\/code>, which means this was not framed by the project as a simple final net-loss number. That is why this article treats Syscoin as a critical June exploit case without forcing it into a fake clean USD total.<\/p>\n <\/article>\n <\/div>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Gnosis Pay<\/span>\n <h3>Consumer-facing trust problem<\/h3>\n <p>Cointelegraph\u2019s June 1 report says Gnosis confirmed an exploit affecting Gnosis Pay card wallet infrastructure, linked in coverage to the delay module. The public emphasis was on containment and reimbursement rather than on a single finalized loss number. That matters because consumer payment infrastructure breaks confidence differently than a niche DeFi pool does. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/article>\n <article class=\"compare-card\">\n <span>TesseraDAO note<\/span>\n <h3>Why it is not in the quantified chart<\/h3>\n <p>Some tracker-based summaries in circulation also mention TesseraDAO in early June. We are not using it in the quantified chart below because we did not find a full official postmortem or equally strong public primary documentation in the source set used for this page.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">June snapshot<\/div>\n <h3>Two June incidents had the clearest source-backed numeric scale<\/h3>\n <\/div>\n <p>Humanity had the cleanest headline dollar loss, while Syscoin gained a public value estimate in later technical analysis.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>Humanity Protocol<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$36M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>Syscoin Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 27.8%;\"><\/div><\/div>\n <div class=\"bar-value\">~$10M<\/div>\n <\/div>\n <\/div>\n <p class=\"scope-note\">Humanity\u2019s figure comes from Cointelegraph\u2019s Quantstamp-linked reporting. Syscoin\u2019s own postmortem focuses on unauthorized release, recovery, and burn, while Halborn\u2019s technical breakdown described the 5 billion SYS incident as worth about <strong>$10 million<\/strong>. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Humanity source<\/a>, <a href=\"https:\/\/www.halborn.com\/blog\/post\/explained-the-syscoin-bridge-hack-june-2026\" rel=\"nofollow noopener\" target=\"_blank\">Halborn on Syscoin<\/a>]<\/span><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"patterns\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Patterns<\/div>\n <h2>What the Attacks Reveal About Web3 Security<\/h2>\n <p>These were not random accidents. The same weak points kept showing up with different branding.<\/p>\n <\/div>\n\n <div class=\"timeline-grid\">\n <article class=\"timeline-card\">\n <span>1. Bridges<\/span>\n <h3>High-value systems, high-complexity logic<\/h3>\n <p>Verus, Gravity, and Syscoin all reinforce the same lesson: bridges hold value, coordinate across systems, and fail in places where validation logic is easy to get subtly wrong.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>2. Private keys<\/span>\n <h3>The weakest part of a decentralized system can still be a laptop<\/h3>\n <p>Humanity Protocol is the clearest June example that attackers do not always need to beat the math. Sometimes they only need valid credentials on the wrong device.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>3. Modules<\/span>\n <h3>Composable architecture expands the attack surface<\/h3>\n <p>Gnosis Pay and TrustedVolumes show that extra execution layers, resolvers, and modules can create new failure points even when the brand users recognize is not the deepest technical source of the bug.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>4. Privileged controls<\/span>\n <h3>Admin paths turn technical risk into supply risk<\/h3>\n <p>Whenever attackers touch upgrade rights, proxy admins, or mint-like controls, the problem stops being a normal bug and becomes a market-structure event.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>The most useful frame here is not \u201ccode bad, audits good.\u201d The stronger frame is that Web3 losses increasingly happen at the seam between <strong>code<\/strong>, <strong>operations<\/strong>, and <strong>privileged workflows<\/strong>. Bridge messages still need perfect validation. Signing keys still need real operational isolation. Admin surfaces still need to be treated like loaded weapons.<\/p>\n <p>That is also why May\u2019s CertiK-linked split is so revealing: code vulnerabilities dominated total value lost, but private-key compromises still made up a large and separate failure class. Those are two different problems, and they need two different kinds of defense. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"users\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> For users<\/div>\n <h2>What Crypto Users Should Learn<\/h2>\n <p>A good-looking interface is not a security model, and \u201caudited\u201d is not a synonym for \u201csafe.\u201d<\/p>\n <\/div>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Before using a protocol<\/span>\n <h3>Questions worth asking<\/h3>\n <ul>\n <li>Who controls upgrades, proxy changes, or emergency powers?<\/li>\n <li>Does the project explain key custody and signer separation clearly?<\/li>\n <li>Has it had prior incidents, and how did it handle them?<\/li>\n <li>Is there an active bug bounty or only marketing copy?<\/li>\n <li>If something breaks, is there a public incident-response plan?<\/li>\n <\/ul>\n <\/article>\n <article class=\"compare-card\">\n <span>Simple rule<\/span>\n <h3>Yield is never the only question<\/h3>\n <p>If a project talks nonstop about APY, incentives, or token upside but says almost nothing concrete about security assumptions, signer controls, and recovery processes, treat that silence as part of the risk model.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"projects\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> For teams<\/div>\n <h2>What Crypto Projects Should Fix<\/h2>\n <p>Audits matter, but the May-June cases show how incomplete it is to stop at the audit PDF.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <ul>\n <li><strong>Isolate critical signers physically and organizationally.<\/strong> Humanity Protocol is the bluntest reminder that work-device compromise is still a devastating attack path.<\/li>\n <li><strong>Fail closed on bridge ambiguity.<\/strong> Syscoin\u2019s postmortem reads like a warning against any mismatch between how different layers interpret the same payload.<\/li>\n <li><strong>Reduce privileged blast radius.<\/strong> Modules, proxy admins, and special-case execution paths should be monitored like they are the system\u2019s true root of trust, because they often are.<\/li>\n <li><strong>Instrument real-time monitoring.<\/strong> Unusual mints, anomalous bridge withdrawals, and suspicious signer actions should trigger alarms before the market discovers them first.<\/li>\n <li><strong>Write the incident plan before the exploit.<\/strong> Teams that improvise under fire usually discover that communication risk compounds technical risk very quickly.<\/li>\n <\/ul>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"takeaway\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Takeaway<\/div>\n <h2>Key Takeaway<\/h2>\n <p>The biggest lesson from May and June 2026 is not that DeFi is doomed. It is that crypto security still breaks most often where systems meet people, permissions, and cross-chain assumptions.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>April 2026 was the real outlier month in pure dollar terms. May cooled down sharply. June still delivered enough damage to make it clear that the industry\u2019s underlying problems did not disappear with the chart. They just became less concentrated.<\/p>\n <ul>\n <li>Bridges remained structurally dangerous.<\/li>\n <li>Private-key compromise remained a live, high-cost failure mode.<\/li>\n <li>Module-based and admin-path complexity kept expanding the attack surface.<\/li>\n <li>Projects that market decentralization without hardening the operational layer are still leaving open doors.<\/li>\n <\/ul>\n <p>If you want the shortest honest version, it is this: <strong>the most expensive part of Web3 security in 2026 is no longer just the smart contract bug. It is the system around the smart contract.<\/strong><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"faq\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> FAQ<\/div>\n <h2>FAQ<\/h2>\n <p>Short answers to the questions readers usually ask once the exploit headlines start blurring together.<\/p>\n <\/div>\n\n <div class=\"faq-list\">\n <details class=\"faq-card\" open>\n <summary>How much was lost in crypto exploits in May 2026?<\/summary>\n <p>The strongest public CertiK-linked figure was <strong>$68.3 million<\/strong>. A broader PeckShield-linked public estimate put the month closer to <strong>$81.7 million<\/strong>. The difference reflects methodology, including how trackers count incidents, phishing, and recoveries. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">CertiK-linked reporting<\/a>, <a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">PeckShield-linked coverage<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>What was the biggest sourced exploit in May 2026?<\/summary>\n <p>In the source set used here, the biggest clearly documented May case was the <strong>Verus Ethereum Bridge<\/strong> incident at about <strong>$11.58 million<\/strong>. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>What was the biggest publicly documented June incident?<\/summary>\n <p><strong>Humanity Protocol<\/strong> is the clearest June case in USD terms among the sources used here, with roughly <strong>$36 million<\/strong> in reported losses. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Why are bridges hacked so often?<\/summary>\n <p>Because bridges hold or control real value while relying on complicated message validation, proof handling, signer logic, and cross-layer assumptions. Verus, Gravity, and Syscoin all showed different versions of that same structural problem.<\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Did Syscoin actually lose a clean $10 million?<\/summary>\n <p>The official Syscoin postmortem does not frame the incident that way. It says there was an unauthorized release of <strong>5 billion SYS<\/strong>, that the funds were returned, and that the returned funds were burned. That is why this article treats Syscoin as a major exploit case without forcing it into a simplified final USD-loss figure. <span class=\"source-inline\">[<a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Does this mean DeFi is unsafe by default?<\/summary>\n <p>Not automatically. But it does mean users should stop evaluating protocols only by token price, APY, and interface quality. The most fragile parts are often bridges, privileged controls, signer operations, and surrounding execution infrastructure.<\/p>\n <\/details>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"reviewed-by\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Reviewed by<\/div>\n <h2>Who reviewed this article<\/h2>\n <p>A short reviewer note for editorial context.<\/p>\n <\/div>\n\n <div class=\"reviewer-card\">\n <div class=\"reviewer-avatar\">\n <img decoding=\"async\" src=\"https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/image.png\" alt=\"Agatha Willings\">\n <\/div>\n <div>\n <h3>Agatha Willings<\/h3>\n <div class=\"reviewer-role\">Crypto researcher<\/div>\n <p>\n Agatha Willings reviews long-form crypto market and security content with a focus on source-backed claims,\n exploit methodology, and the difference between clean tracker totals, incident-response reporting, and\n postmortem-quality technical evidence.\n <\/p>\n <\/div>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"sources\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Sources<\/div>\n <h2>Verified Sources<\/h2>\n <p>This article relies on official incident statements, public postmortems, and the clearest available reporting for month-level totals. External links are marked <code>nofollow<\/code>.<\/p>\n <\/div>\n\n <div class=\"table-card prose\">\n <div class=\"table-scroll\">\n <table>\n <thead>\n <tr>\n <th>Source<\/th>\n <th>Date<\/th>\n <th>Key point used in article<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/crypto-hacks-cause-630m-losses-in-april-highest-since-february-2025\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Crypto hacks hit $630M in April<\/a><\/td>\n <td>Apr 2026<\/td>\n <td>Used for the April 2026 context figure of roughly $629.7M based on DeFiLlama data.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 CertiK-linked May 2026 loss report<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used for the $68.3M May total, phishing share, recovered funds, bridge share, code-vulnerability share, and private-key compromise share.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \u2014 PeckShield-linked May 2026 coverage<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used as the broader May estimate at about $81.7M across 40 major hacks, with explicit methodology caution.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Verus Ethereum Bridge<\/a><\/td>\n <td>May 18, 2026<\/td>\n <td>Used for the reported $11.58M Verus bridge exploit and the forged cross-chain transfer framing.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/thorchain-halts-trading-zachxbt-flags-10m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 THORChain<\/a><\/td>\n <td>May 15, 2026<\/td>\n <td>Used for the roughly $10.1M THORChain exploit figure.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/1inch-fusion-resolver-trusted-volumes-floats-bounty-after-67m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 TrustedVolumes<\/a><\/td>\n <td>May 2026<\/td>\n <td>Used for the reported $6.7M TrustedVolumes exploit and the third-party resolver \/ market-maker angle.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/cosmos-based-gravity-bridge-halts-bridge-after-reported-54m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Gravity Bridge<\/a><\/td>\n <td>May 31, 2026<\/td>\n <td>Used for the reported $5.4M Gravity Bridge exploit and suspected signing-key compromise framing.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/www.humanity.org\/hincidentupdate\" rel=\"nofollow noopener\" target=\"_blank\">Humanity Protocol \u2014 official incident summary<\/a><\/td>\n <td>Published Jun 12, 2026<\/td>\n <td>Used for the official June 8 incident timeline, Quantstamp engagement, key compromise details, and cross-chain mint\/sale summary.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/humanity-h-token-tanks-85-following-30m-private-key-compromise\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Humanity Protocol initial coverage<\/a><\/td>\n <td>Jun 9, 2026<\/td>\n <td>Used for early public reporting of more than $30M in stolen H tokens and the 85% price drop context.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Humanity \/ Quantstamp follow-up<\/a><\/td>\n <td>Jun 14, 2026<\/td>\n <td>Used for the $36M figure and the phishing-email \/ malware narrative attributed to Quantstamp.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin \u2014 Technical postmortem<\/a><\/td>\n <td>Jun 2026<\/td>\n <td>Used for the bridge exploit mechanics, unauthorized 5B SYS release, recovery, burn, and remediation details.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/www.halborn.com\/blog\/post\/explained-the-syscoin-bridge-hack-june-2026\" rel=\"nofollow noopener\" target=\"_blank\">Halborn \u2014 Explained: The Syscoin Bridge Hack<\/a><\/td>\n <td>Jun 8, 2026<\/td>\n <td>Used for the public educational estimate that the 5B SYS bridge incident was worth about $10M at the time of the exploit.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Gnosis Pay exploit<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used for public confirmation of the delay-module-related incident and the reimbursement commitment.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n <\/section>\n <\/div>\n\n <aside class=\"rail\">\n <div class=\"toc\">\n <h2>On this page<\/h2>\n <nav class=\"toc-links\">\n <a class=\"toc-link\" href=\"#overview\">The big picture<\/a>\n <a class=\"toc-link\" href=\"#may\">What happened in May<\/a>\n <a class=\"toc-link\" href=\"#june\">What happened in June<\/a>\n <a class=\"toc-link\" href=\"#patterns\">What the attacks reveal<\/a>\n <a class=\"toc-link\" href=\"#users\">What users should learn<\/a>\n <a class=\"toc-link\" href=\"#projects\">What projects should fix<\/a>\n <a class=\"toc-link\" href=\"#takeaway\">Key takeaway<\/a>\n <a class=\"toc-link\" href=\"#faq\">FAQ<\/a>\n <a class=\"toc-link\" href=\"#reviewed-by\">Reviewed by<\/a>\n <a class=\"toc-link\" href=\"#sources\">Sources<\/a>\n <\/nav>\n <\/div>\n\n <div class=\"sidebar-cta\">\n <h3>Buy crypto<\/h3>\n <p>Open Guardarian directly.<\/p>\n <a class=\"button button-primary\" href=\"https:\/\/guardarian.com\/\">Open Guardarian<\/a>\n <\/div>\n <\/aside>\n <\/div>\n <\/main>\n <\/div>\n\n <script>\n (function () {\n const mobileButton = document.getElementById('mobileTocButton');\n const mobilePanel = document.getElementById('mobileTocPanel');\n const tocLinks = Array.from(document.querySelectorAll('.toc-link'));\n const sections = Array.from(document.querySelectorAll('[data-section]'));\n const externalLinks = Array.from(document.querySelectorAll('a[href^=\"http\"]'));\n\n externalLinks.forEach(function (link) {\n try {\n const url = new URL(link.href);\n const isGuardarian = url.hostname === 'guardarian.com' || url.hostname === 'www.guardarian.com';\n if (isGuardarian) {\n link.setAttribute('rel', 'noopener noreferrer');\n link.setAttribute('target', '_blank');\n return;\n }\n } catch (error) {\n return;\n }\n\n link.setAttribute('rel', 'nofollow noopener noreferrer');\n link.setAttribute('target', 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{"id":9731,"date":"2026-06-18T13:03:20","date_gmt":"2026-06-18T10:03:20","guid":{"rendered":"https:\/\/guardarian.com\/blog\/?p=9731"},"modified":"2026-06-18T13:04:34","modified_gmt":"2026-06-18T10:04:34","slug":"crypto-hacks-may-june-2026","status":"publish","type":"post","link":"https:\/\/guardarian.com\/blog\/crypto-hacks-may-june-2026","title":{"rendered":"Crypto Hacks in May and June 2026: Biggest Exploits, Losses and Security Lessons"},"content":{"rendered":"\n\n\n\n \n \n Crypto Hacks in May and June 2026: Biggest Exploits, Losses and Security Lessons | Guardarian<\/title>\n <meta name=\"description\" content=\"A full breakdown of crypto hacks in May and June 2026: total stolen funds, major incidents, bridge exploits, private key compromises, smart contract vulnerabilities and what users should learn.\">\n <meta name=\"robots\" content=\"index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1\">\n <meta name=\"author\" content=\"Guardarian\">\n <link 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<section class=\"hero\">\n <div class=\"mobile-toc-wrap\">\n <button class=\"button mobile-toc-button\" id=\"mobileTocButton\" type=\"button\" aria-expanded=\"false\" aria-controls=\"mobileTocPanel\">\n <span>On this page<\/span>\n <span>\u2630<\/span>\n <\/button>\n <div class=\"mobile-toc-panel\" id=\"mobileTocPanel\">\n <a class=\"toc-link\" href=\"#overview\">The big picture<\/a>\n <a class=\"toc-link\" href=\"#may\">What happened in May<\/a>\n <a class=\"toc-link\" href=\"#june\">What happened in June<\/a>\n <a class=\"toc-link\" href=\"#patterns\">What the attacks reveal<\/a>\n <a class=\"toc-link\" href=\"#users\">What users should learn<\/a>\n <a class=\"toc-link\" href=\"#projects\">What projects should fix<\/a>\n <a class=\"toc-link\" href=\"#takeaway\">Key takeaway<\/a>\n <a class=\"toc-link\" href=\"#faq\">FAQ<\/a>\n <a class=\"toc-link\" href=\"#reviewed-by\">Reviewed by<\/a>\n <a class=\"toc-link\" href=\"#sources\">Sources<\/a>\n <div class=\"mobile-toc-cta\">\n <div class=\"sidebar-cta\">\n <h3>Buy crypto<\/h3>\n <p>Open Guardarian directly.<\/p>\n <a class=\"button button-primary\" href=\"https:\/\/guardarian.com\/\">Open Guardarian<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"hero-grid\">\n <div class=\"hero-copy\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Research article<\/div>\n <div class=\"hero-copy-main\">\n <h1>Crypto Hacks in May and June 2026<\/h1>\n <p>\n May and early June 2026 did not match April\u2019s extreme hack losses, but they still exposed the same fragile\n layers of Web3 security: bridges, key management, privileged controls, and complex modules that fail in very\n expensive ways when assumptions break.\n <\/p>\n <\/div>\n <\/div>\n\n <div class=\"hero-side\">\n <div class=\"metrics-grid\">\n <article class=\"metric-card\">\n <span>May tracker range<\/span>\n <strong>$68.3M-$81.7M<\/strong>\n <p>CertiK-linked reporting came in lower than PeckShield-linked reporting, which is a methodology point, not a contradiction.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>April context<\/span>\n <strong>$629.7M<\/strong>\n <p>April still dwarfed May. That drop looks comforting until you remember that \u201ccalmer\u201d still meant tens of millions lost.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>Largest sourced case<\/span>\n <strong>$36M<\/strong>\n <p>Humanity Protocol was the biggest publicly documented June incident in USD terms among the sources used here.<\/p>\n <\/article>\n <article class=\"metric-card\">\n <span>Recurring weak points<\/span>\n <strong>Bridges, keys, admin<\/strong>\n <p>Across the best-documented cases, the market kept running into the same three failure modes in different costumes.<\/p>\n <\/article>\n <\/div>\n <\/div>\n <\/div>\n <\/section>\n\n <div class=\"layout\">\n <div class=\"content\">\n <section class=\"section\" id=\"overview\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Overview<\/div>\n <h2>The Big Picture<\/h2>\n <p>This was not the worst period in crypto history. It was something subtler and, in its own way, just as revealing.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>May and early June 2026 reminded the market of an expensive truth: crypto systems can be decentralized at the protocol level while still failing through very human bottlenecks. A compromised device, a badly validated bridge message, a privileged mint path, or a fragile module can still turn \u201ctrustless\u201d infrastructure into a loss report.<\/p>\n <p>The cleanest source-backed monthly figure for <strong>May 2026<\/strong> comes from <strong>CertiK-linked reporting<\/strong>, which put exploit losses at <strong>$68.3 million<\/strong>, down almost 90% from April\u2019s roughly <strong>$650 million<\/strong>. The same report said about <strong>$2.6 million<\/strong> came from phishing and about <strong>$9.4 million<\/strong> was recovered or returned. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <p>A broader <strong>PeckShield-linked<\/strong> figure, reported by DeFi Planet, put <strong>May 2026<\/strong> losses closer to <strong>$81.7 million<\/strong> across <strong>40 major hacks<\/strong>. That higher total is useful, but it should be read as a different methodology rather than a direct correction of the CertiK number. <span class=\"source-inline\">[<a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \/ PeckShield-linked coverage<\/a>]<\/span><\/p>\n <p>For <strong>June 2026<\/strong>, the public picture is less tidy. Humanity Protocol alone accounted for roughly <strong>$36 million<\/strong> in reported losses. Syscoin\u2019s bridge incident involved the unauthorized release of <strong>5 billion SYS<\/strong>, but the official postmortem centers on recovery and burn rather than a neat realized-loss figure. Gnosis Pay publicly confirmed its incident and promised reimbursement, but early coverage focused more on the exploit path and response than on a final headline dollar amount. That makes June very important, but not yet cleanly comparable on one single tracker-style number. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Quantstamp-linked reporting<\/a>, <a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin postmortem<\/a>, <a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Gnosis<\/a>]<\/span><\/p>\n <\/article>\n\n <div class=\"signal-grid\">\n <article class=\"signal-card\">\n <span>April baseline<\/span>\n <strong>$629.7M<\/strong>\n <p>April was the spike month, which makes May\u2019s cooldown look dramatic even though security conditions stayed fragile.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>May consensus<\/span>\n <strong>Down sharply<\/strong>\n <p>Both main public tracker families showed a major month-over-month drop, even if they disagreed on the exact total.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>June headline<\/span>\n <strong>Humanity<\/strong>\n <p>The largest well-documented June case in the source set is still the private-key-driven attack on Humanity Protocol.<\/p>\n <\/article>\n <article class=\"signal-card\">\n <span>Security lesson<\/span>\n <strong>Ops risk matters<\/strong>\n <p>The biggest pattern here is not just buggy code. It is also compromised laptops, keys, and privileged workflows.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">Monthly loss context<\/div>\n <h3>April to May cooled down, but not because crypto suddenly became safe<\/h3>\n <\/div>\n <p>USD values below come from public reporting, with April based on DeFiLlama and May shown through two tracker methodologies.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>April 2026 (DeFiLlama \/ Cointelegraph)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$629.7M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>May 2026 (CertiK-linked reporting)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 10.9%;\"><\/div><\/div>\n <div class=\"bar-value\">$68.3M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>May 2026 (PeckShield-linked reporting)<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 13%;\"><\/div><\/div>\n <div class=\"bar-value\">$81.7M<\/div>\n <\/div>\n <\/div>\n <div class=\"legend-row\">\n <div class=\"legend-pill\"><span class=\"legend-dot\"><\/span> April figure uses DeFiLlama data cited by Cointelegraph<\/div>\n <div class=\"legend-pill\"><span class=\"legend-dot\"><\/span> May range reflects different tracker methodologies<\/div>\n <\/div>\n <\/article>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Methodology note<\/span>\n <h3>Why the May number is a range<\/h3>\n <p>Tracker totals differ because firms count incidents, phishing, recoveries, and \u201cmajor attacks\u201d differently. That is normal in crypto-security reporting, and pretending otherwise would create fake precision.<\/p>\n <\/article>\n <article class=\"compare-card\">\n <span>Why no clean YOY chart<\/span>\n <h3>We chose accuracy over decorative comparison<\/h3>\n <p>A strict May-June 2025 versus May-June 2026 comparison would require the same tracker and the same public methodology for both periods. That like-for-like series was not cleanly available in the primary or best public sources used here, so this page uses month-over-month context instead.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"may\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> May 2026<\/div>\n <h2>What Happened in May 2026?<\/h2>\n <p>May was quieter than April, but it was still full of bridge failures, protocol exploits, and key-driven incidents.<\/p>\n <\/div>\n\n <div class=\"subgrid\">\n <article class=\"article-card prose\">\n <h3>The strongest source-backed May reading<\/h3>\n <p>Cointelegraph\u2019s June 1 write-up of CertiK\u2019s monthly data is the clearest public May summary in the source set. It says May exploit losses fell to <strong>$68.3 million<\/strong>, that <strong>cross-chain bridges<\/strong> were the most targeted category at <strong>$28.6 million<\/strong> or <strong>42%<\/strong> of total losses, and that <strong>code vulnerabilities<\/strong> represented roughly <strong>66%<\/strong> of value lost. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <p>It also says <strong>wallet or private-key compromises<\/strong> were the second-most costly attack vector at about <strong>$13.7 million<\/strong>. That point matters because it pushes the story away from \u201csmart contracts are buggy\u201d and toward \u201csecurity operations are still breaking the system.\u201d<\/p>\n <\/article>\n\n <article class=\"quote-card prose\">\n <h3>What the broader tracker view adds<\/h3>\n <blockquote>\n <p>\n PeckShield-linked coverage put May at roughly $81.7 million across 40 major attacks, which suggests the calmer month was still not a small month.\n <\/p>\n <\/blockquote>\n <p>The exact total depends on what each tracker includes, but both public reporting lines agree on the broader pattern: May was far below April, yet still structurally dominated by the same bridge and infrastructure weaknesses. <span class=\"source-inline\">[<a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \/ PeckShield-linked coverage<\/a>]<\/span><\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">Largest sourced May incidents<\/div>\n <h3>The month\u2019s best-documented losses still clustered around bridges and execution infrastructure<\/h3>\n <\/div>\n <p>These are the clearest public USD figures from the source set, not an exhaustive top-ten leaderboard.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>Verus Ethereum Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$11.58M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>THORChain<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 87.2%;\"><\/div><\/div>\n <div class=\"bar-value\">$10.1M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>TrustedVolumes<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 57.9%;\"><\/div><\/div>\n <div class=\"bar-value\">$6.7M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>Gravity Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 46.6%;\"><\/div><\/div>\n <div class=\"bar-value\">$5.4M<\/div>\n <\/div>\n <\/div>\n <p class=\"scope-note\">Those values come from public reporting around the individual incidents. Other trackers published larger May incident lists, but not every item had equally accessible primary documentation.<\/p>\n <\/article>\n\n <div class=\"table-card prose\">\n <div class=\"table-scroll\">\n <table>\n <thead>\n <tr>\n <th>Project<\/th>\n <th>Reported loss<\/th>\n <th>Why it mattered<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Verus Ethereum Bridge<\/td>\n <td>$11.58M<\/td>\n <td>Fraudulent cross-chain transfer instructions reportedly tricked the bridge into releasing funds from reserves. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>THORChain<\/td>\n <td>$10.1M<\/td>\n <td>Another reminder that cross-chain liquidity systems remain exposed when complex multi-chain execution paths break. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/thorchain-halts-trading-zachxbt-flags-10m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>TrustedVolumes<\/td>\n <td>$6.7M<\/td>\n <td>A third-party resolver exploit showed how losses can come from surrounding execution infrastructure, not just the core protocol brand users recognize. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/1inch-fusion-resolver-trusted-volumes-floats-bounty-after-67m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <tr>\n <td>Gravity Bridge<\/td>\n <td>$5.4M<\/td>\n <td>Early reporting pointed to a suspected signing-key compromise, reinforcing the operational-security angle of the month. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/cosmos-based-gravity-bridge-halts-bridge-after-reported-54m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"june\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> June 2026<\/div>\n <h2>What Happened in June 2026?<\/h2>\n <p>June\u2019s most important cases were less about a single category and more about how many ways trust can break around the protocol edge.<\/p>\n <\/div>\n\n <div class=\"subgrid\">\n <article class=\"article-card prose\">\n <h3>Humanity Protocol was the clearest public June shock<\/h3>\n <p>Humanity Protocol is the largest well-documented June incident in the source set. Cointelegraph\u2019s June 14 coverage, citing Quantstamp, put the loss at <strong>$36 million<\/strong> and said the compromise began with a phishing email disguised as a Bithumb token lockup update. The attachment reportedly installed malware that gave the attacker remote access to a compromised laptop. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ Quantstamp-linked reporting<\/a>]<\/span><\/p>\n <p>The project\u2019s own June 12 incident summary adds more structure: Quantstamp was engaged on <strong>June 8<\/strong>; the attacker used stolen key material to upgrade contracts, mint and sell <strong>$H<\/strong> across Ethereum and BNB Smart Chain, and control BSC-side signers plus ProxyAdmin-related functionality. Humanity\u2019s own summary also says the attacker drained roughly 150 operational wallets and later consolidated proceeds. <span class=\"source-inline\">[<a href=\"https:\/\/www.humanity.org\/hincidentupdate\" rel=\"nofollow noopener\" target=\"_blank\">Humanity official incident update<\/a>]<\/span><\/p>\n <\/article>\n\n <article class=\"article-card prose\">\n <h3>Syscoin was a bridge-logic lesson, not just a price headline<\/h3>\n <p>Syscoin\u2019s official postmortem says the bridge incident on <strong>June 7, 2026<\/strong> resulted in the unauthorized release of <strong>5 billion SYS<\/strong> on the UTXO side. The postmortem attributes the exploit to a <strong>cross-layer interpretation mismatch<\/strong> between Syscoin Core and the NEVM relay, where duplicate asset commitments created ambiguity that the two components resolved differently. <span class=\"source-inline\">[<a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin postmortem<\/a>]<\/span><\/p>\n <p>That same postmortem is important for another reason: it says the returned funds were sent back to the official recovery address and then burned to a standard <code>OP_RETURN<\/code>, which means this was not framed by the project as a simple final net-loss number. That is why this article treats Syscoin as a critical June exploit case without forcing it into a fake clean USD total.<\/p>\n <\/article>\n <\/div>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Gnosis Pay<\/span>\n <h3>Consumer-facing trust problem<\/h3>\n <p>Cointelegraph\u2019s June 1 report says Gnosis confirmed an exploit affecting Gnosis Pay card wallet infrastructure, linked in coverage to the delay module. The public emphasis was on containment and reimbursement rather than on a single finalized loss number. That matters because consumer payment infrastructure breaks confidence differently than a niche DeFi pool does. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/article>\n <article class=\"compare-card\">\n <span>TesseraDAO note<\/span>\n <h3>Why it is not in the quantified chart<\/h3>\n <p>Some tracker-based summaries in circulation also mention TesseraDAO in early June. We are not using it in the quantified chart below because we did not find a full official postmortem or equally strong public primary documentation in the source set used for this page.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"chart-card\">\n <div class=\"chart-head\">\n <div>\n <div class=\"chart-label\">June snapshot<\/div>\n <h3>Two June incidents had the clearest source-backed numeric scale<\/h3>\n <\/div>\n <p>Humanity had the cleanest headline dollar loss, while Syscoin gained a public value estimate in later technical analysis.<\/p>\n <\/div>\n <div class=\"bars\">\n <div class=\"bar-row\">\n <label>Humanity Protocol<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 100%;\"><\/div><\/div>\n <div class=\"bar-value\">$36M<\/div>\n <\/div>\n <div class=\"bar-row\">\n <label>Syscoin Bridge<\/label>\n <div class=\"bar-track\"><div class=\"bar-fill\" style=\"width: 27.8%;\"><\/div><\/div>\n <div class=\"bar-value\">~$10M<\/div>\n <\/div>\n <\/div>\n <p class=\"scope-note\">Humanity\u2019s figure comes from Cointelegraph\u2019s Quantstamp-linked reporting. Syscoin\u2019s own postmortem focuses on unauthorized release, recovery, and burn, while Halborn\u2019s technical breakdown described the 5 billion SYS incident as worth about <strong>$10 million<\/strong>. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Humanity source<\/a>, <a href=\"https:\/\/www.halborn.com\/blog\/post\/explained-the-syscoin-bridge-hack-june-2026\" rel=\"nofollow noopener\" target=\"_blank\">Halborn on Syscoin<\/a>]<\/span><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"patterns\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Patterns<\/div>\n <h2>What the Attacks Reveal About Web3 Security<\/h2>\n <p>These were not random accidents. The same weak points kept showing up with different branding.<\/p>\n <\/div>\n\n <div class=\"timeline-grid\">\n <article class=\"timeline-card\">\n <span>1. Bridges<\/span>\n <h3>High-value systems, high-complexity logic<\/h3>\n <p>Verus, Gravity, and Syscoin all reinforce the same lesson: bridges hold value, coordinate across systems, and fail in places where validation logic is easy to get subtly wrong.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>2. Private keys<\/span>\n <h3>The weakest part of a decentralized system can still be a laptop<\/h3>\n <p>Humanity Protocol is the clearest June example that attackers do not always need to beat the math. Sometimes they only need valid credentials on the wrong device.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>3. Modules<\/span>\n <h3>Composable architecture expands the attack surface<\/h3>\n <p>Gnosis Pay and TrustedVolumes show that extra execution layers, resolvers, and modules can create new failure points even when the brand users recognize is not the deepest technical source of the bug.<\/p>\n <\/article>\n <article class=\"timeline-card\">\n <span>4. Privileged controls<\/span>\n <h3>Admin paths turn technical risk into supply risk<\/h3>\n <p>Whenever attackers touch upgrade rights, proxy admins, or mint-like controls, the problem stops being a normal bug and becomes a market-structure event.<\/p>\n <\/article>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>The most useful frame here is not \u201ccode bad, audits good.\u201d The stronger frame is that Web3 losses increasingly happen at the seam between <strong>code<\/strong>, <strong>operations<\/strong>, and <strong>privileged workflows<\/strong>. Bridge messages still need perfect validation. Signing keys still need real operational isolation. Admin surfaces still need to be treated like loaded weapons.<\/p>\n <p>That is also why May\u2019s CertiK-linked split is so revealing: code vulnerabilities dominated total value lost, but private-key compromises still made up a large and separate failure class. Those are two different problems, and they need two different kinds of defense. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \/ CertiK<\/a>]<\/span><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"users\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> For users<\/div>\n <h2>What Crypto Users Should Learn<\/h2>\n <p>A good-looking interface is not a security model, and \u201caudited\u201d is not a synonym for \u201csafe.\u201d<\/p>\n <\/div>\n\n <div class=\"compare-grid\">\n <article class=\"compare-card\">\n <span>Before using a protocol<\/span>\n <h3>Questions worth asking<\/h3>\n <ul>\n <li>Who controls upgrades, proxy changes, or emergency powers?<\/li>\n <li>Does the project explain key custody and signer separation clearly?<\/li>\n <li>Has it had prior incidents, and how did it handle them?<\/li>\n <li>Is there an active bug bounty or only marketing copy?<\/li>\n <li>If something breaks, is there a public incident-response plan?<\/li>\n <\/ul>\n <\/article>\n <article class=\"compare-card\">\n <span>Simple rule<\/span>\n <h3>Yield is never the only question<\/h3>\n <p>If a project talks nonstop about APY, incentives, or token upside but says almost nothing concrete about security assumptions, signer controls, and recovery processes, treat that silence as part of the risk model.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"projects\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> For teams<\/div>\n <h2>What Crypto Projects Should Fix<\/h2>\n <p>Audits matter, but the May-June cases show how incomplete it is to stop at the audit PDF.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <ul>\n <li><strong>Isolate critical signers physically and organizationally.<\/strong> Humanity Protocol is the bluntest reminder that work-device compromise is still a devastating attack path.<\/li>\n <li><strong>Fail closed on bridge ambiguity.<\/strong> Syscoin\u2019s postmortem reads like a warning against any mismatch between how different layers interpret the same payload.<\/li>\n <li><strong>Reduce privileged blast radius.<\/strong> Modules, proxy admins, and special-case execution paths should be monitored like they are the system\u2019s true root of trust, because they often are.<\/li>\n <li><strong>Instrument real-time monitoring.<\/strong> Unusual mints, anomalous bridge withdrawals, and suspicious signer actions should trigger alarms before the market discovers them first.<\/li>\n <li><strong>Write the incident plan before the exploit.<\/strong> Teams that improvise under fire usually discover that communication risk compounds technical risk very quickly.<\/li>\n <\/ul>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"takeaway\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Takeaway<\/div>\n <h2>Key Takeaway<\/h2>\n <p>The biggest lesson from May and June 2026 is not that DeFi is doomed. It is that crypto security still breaks most often where systems meet people, permissions, and cross-chain assumptions.<\/p>\n <\/div>\n\n <article class=\"article-card prose\">\n <p>April 2026 was the real outlier month in pure dollar terms. May cooled down sharply. June still delivered enough damage to make it clear that the industry\u2019s underlying problems did not disappear with the chart. They just became less concentrated.<\/p>\n <ul>\n <li>Bridges remained structurally dangerous.<\/li>\n <li>Private-key compromise remained a live, high-cost failure mode.<\/li>\n <li>Module-based and admin-path complexity kept expanding the attack surface.<\/li>\n <li>Projects that market decentralization without hardening the operational layer are still leaving open doors.<\/li>\n <\/ul>\n <p>If you want the shortest honest version, it is this: <strong>the most expensive part of Web3 security in 2026 is no longer just the smart contract bug. It is the system around the smart contract.<\/strong><\/p>\n <\/article>\n <\/section>\n\n <section class=\"section\" id=\"faq\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> FAQ<\/div>\n <h2>FAQ<\/h2>\n <p>Short answers to the questions readers usually ask once the exploit headlines start blurring together.<\/p>\n <\/div>\n\n <div class=\"faq-list\">\n <details class=\"faq-card\" open>\n <summary>How much was lost in crypto exploits in May 2026?<\/summary>\n <p>The strongest public CertiK-linked figure was <strong>$68.3 million<\/strong>. A broader PeckShield-linked public estimate put the month closer to <strong>$81.7 million<\/strong>. The difference reflects methodology, including how trackers count incidents, phishing, and recoveries. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">CertiK-linked reporting<\/a>, <a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">PeckShield-linked coverage<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>What was the biggest sourced exploit in May 2026?<\/summary>\n <p>In the source set used here, the biggest clearly documented May case was the <strong>Verus Ethereum Bridge<\/strong> incident at about <strong>$11.58 million<\/strong>. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>What was the biggest publicly documented June incident?<\/summary>\n <p><strong>Humanity Protocol<\/strong> is the clearest June case in USD terms among the sources used here, with roughly <strong>$36 million<\/strong> in reported losses. <span class=\"source-inline\">[<a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Why are bridges hacked so often?<\/summary>\n <p>Because bridges hold or control real value while relying on complicated message validation, proof handling, signer logic, and cross-layer assumptions. Verus, Gravity, and Syscoin all showed different versions of that same structural problem.<\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Did Syscoin actually lose a clean $10 million?<\/summary>\n <p>The official Syscoin postmortem does not frame the incident that way. It says there was an unauthorized release of <strong>5 billion SYS<\/strong>, that the funds were returned, and that the returned funds were burned. That is why this article treats Syscoin as a major exploit case without forcing it into a simplified final USD-loss figure. <span class=\"source-inline\">[<a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Source<\/a>]<\/span><\/p>\n <\/details>\n <details class=\"faq-card\">\n <summary>Does this mean DeFi is unsafe by default?<\/summary>\n <p>Not automatically. But it does mean users should stop evaluating protocols only by token price, APY, and interface quality. The most fragile parts are often bridges, privileged controls, signer operations, and surrounding execution infrastructure.<\/p>\n <\/details>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"reviewed-by\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Reviewed by<\/div>\n <h2>Who reviewed this article<\/h2>\n <p>A short reviewer note for editorial context.<\/p>\n <\/div>\n\n <div class=\"reviewer-card\">\n <div class=\"reviewer-avatar\">\n <img decoding=\"async\" src=\"https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/image.png\" alt=\"Agatha Willings\">\n <\/div>\n <div>\n <h3>Agatha Willings<\/h3>\n <div class=\"reviewer-role\">Crypto researcher<\/div>\n <p>\n Agatha Willings reviews long-form crypto market and security content with a focus on source-backed claims,\n exploit methodology, and the difference between clean tracker totals, incident-response reporting, and\n postmortem-quality technical evidence.\n <\/p>\n <\/div>\n <\/div>\n <\/section>\n\n <section class=\"section\" id=\"sources\" data-section>\n <div class=\"section-head\">\n <div class=\"eyebrow\"><span class=\"eyebrow-dot\"><\/span> Sources<\/div>\n <h2>Verified Sources<\/h2>\n <p>This article relies on official incident statements, public postmortems, and the clearest available reporting for month-level totals. External links are marked <code>nofollow<\/code>.<\/p>\n <\/div>\n\n <div class=\"table-card prose\">\n <div class=\"table-scroll\">\n <table>\n <thead>\n <tr>\n <th>Source<\/th>\n <th>Date<\/th>\n <th>Key point used in article<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/crypto-hacks-cause-630m-losses-in-april-highest-since-february-2025\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Crypto hacks hit $630M in April<\/a><\/td>\n <td>Apr 2026<\/td>\n <td>Used for the April 2026 context figure of roughly $629.7M based on DeFiLlama data.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/crypto-exploit-losses-fall-by-90-in-may-to-68m-certik\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 CertiK-linked May 2026 loss report<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used for the $68.3M May total, phishing share, recovered funds, bridge share, code-vulnerability share, and private-key compromise share.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/defi-planet.com\/2026\/06\/crypto-hacks-fall-to-81-7m-in-may-as-bridge-attacks-stay-high\/\" rel=\"nofollow noopener\" target=\"_blank\">DeFi Planet \u2014 PeckShield-linked May 2026 coverage<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used as the broader May estimate at about $81.7M across 40 major hacks, with explicit methodology caution.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/verus-ethereum-bridge-reportedly-exploited-for-millions\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Verus Ethereum Bridge<\/a><\/td>\n <td>May 18, 2026<\/td>\n <td>Used for the reported $11.58M Verus bridge exploit and the forged cross-chain transfer framing.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/thorchain-halts-trading-zachxbt-flags-10m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 THORChain<\/a><\/td>\n <td>May 15, 2026<\/td>\n <td>Used for the roughly $10.1M THORChain exploit figure.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/1inch-fusion-resolver-trusted-volumes-floats-bounty-after-67m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 TrustedVolumes<\/a><\/td>\n <td>May 2026<\/td>\n <td>Used for the reported $6.7M TrustedVolumes exploit and the third-party resolver \/ market-maker angle.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/cosmos-based-gravity-bridge-halts-bridge-after-reported-54m-exploit\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Gravity Bridge<\/a><\/td>\n <td>May 31, 2026<\/td>\n <td>Used for the reported $5.4M Gravity Bridge exploit and suspected signing-key compromise framing.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/www.humanity.org\/hincidentupdate\" rel=\"nofollow noopener\" target=\"_blank\">Humanity Protocol \u2014 official incident summary<\/a><\/td>\n <td>Published Jun 12, 2026<\/td>\n <td>Used for the official June 8 incident timeline, Quantstamp engagement, key compromise details, and cross-chain mint\/sale summary.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/humanity-h-token-tanks-85-following-30m-private-key-compromise\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Humanity Protocol initial coverage<\/a><\/td>\n <td>Jun 9, 2026<\/td>\n <td>Used for early public reporting of more than $30M in stolen H tokens and the 85% price drop context.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/humanity-protocol-hack-linked-north-korean-actors-quantstamp\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Humanity \/ Quantstamp follow-up<\/a><\/td>\n <td>Jun 14, 2026<\/td>\n <td>Used for the $36M figure and the phishing-email \/ malware narrative attributed to Quantstamp.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/syscoin.org\/news\/technical-postmortem-syscoin-bridge-incident-recovery-and-remediation\" rel=\"nofollow noopener\" target=\"_blank\">Syscoin \u2014 Technical postmortem<\/a><\/td>\n <td>Jun 2026<\/td>\n <td>Used for the bridge exploit mechanics, unauthorized 5B SYS release, recovery, burn, and remediation details.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/www.halborn.com\/blog\/post\/explained-the-syscoin-bridge-hack-june-2026\" rel=\"nofollow noopener\" target=\"_blank\">Halborn \u2014 Explained: The Syscoin Bridge Hack<\/a><\/td>\n <td>Jun 8, 2026<\/td>\n <td>Used for the public educational estimate that the 5B SYS bridge incident was worth about $10M at the time of the exploit.<\/td>\n <\/tr>\n <tr>\n <td><a href=\"https:\/\/cointelegraph.com\/news\/gnosis-hit-by-fresh-exploit-team-vows-to-fully-cover-user-losses\" rel=\"nofollow noopener\" target=\"_blank\">Cointelegraph \u2014 Gnosis Pay exploit<\/a><\/td>\n <td>Jun 1, 2026<\/td>\n <td>Used for public confirmation of the delay-module-related incident and the reimbursement commitment.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n <\/section>\n <\/div>\n\n <aside class=\"rail\">\n <div class=\"toc\">\n <h2>On this page<\/h2>\n <nav class=\"toc-links\">\n <a class=\"toc-link\" href=\"#overview\">The big picture<\/a>\n <a class=\"toc-link\" href=\"#may\">What happened in May<\/a>\n <a class=\"toc-link\" href=\"#june\">What happened in June<\/a>\n <a class=\"toc-link\" href=\"#patterns\">What the attacks reveal<\/a>\n <a class=\"toc-link\" href=\"#users\">What users should learn<\/a>\n <a class=\"toc-link\" href=\"#projects\">What projects should fix<\/a>\n <a class=\"toc-link\" href=\"#takeaway\">Key takeaway<\/a>\n <a class=\"toc-link\" href=\"#faq\">FAQ<\/a>\n <a class=\"toc-link\" href=\"#reviewed-by\">Reviewed by<\/a>\n <a class=\"toc-link\" href=\"#sources\">Sources<\/a>\n <\/nav>\n <\/div>\n\n <div class=\"sidebar-cta\">\n <h3>Buy crypto<\/h3>\n <p>Open Guardarian directly.<\/p>\n <a class=\"button button-primary\" href=\"https:\/\/guardarian.com\/\">Open Guardarian<\/a>\n <\/div>\n <\/aside>\n <\/div>\n <\/main>\n <\/div>\n\n <script>\n (function () {\n const mobileButton = document.getElementById('mobileTocButton');\n const mobilePanel = document.getElementById('mobileTocPanel');\n const tocLinks = Array.from(document.querySelectorAll('.toc-link'));\n const sections = Array.from(document.querySelectorAll('[data-section]'));\n const externalLinks = Array.from(document.querySelectorAll('a[href^=\"http\"]'));\n\n externalLinks.forEach(function (link) {\n try {\n const url = new URL(link.href);\n const isGuardarian = url.hostname === 'guardarian.com' || url.hostname === 'www.guardarian.com';\n if (isGuardarian) {\n link.setAttribute('rel', 'noopener noreferrer');\n link.setAttribute('target', '_blank');\n return;\n }\n } catch (error) {\n return;\n }\n\n link.setAttribute('rel', 'nofollow noopener noreferrer');\n link.setAttribute('target', 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observer.observe(section);\n });\n }\n }());\n <\/script>\n<\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>A full breakdown of crypto hacks in May and June 2026: total stolen funds, major incidents, bridge exploits, private key compromises, smart contract vulnerabilities and what users should learn.<\/p>\n","protected":false},"author":13,"featured_media":9732,"comment_status":"closed","ping_status":"open","sticky":false,"template":"calculator","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[174],"tags":[],"class_list":["post-9731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cryptocurrency-news-and-insights"],"uagb_featured_image_src":{"full":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407.png",2172,492,false],"thumbnail":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407-300x68.png",300,68,true],"medium":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407.png",2172,492,false],"medium_large":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407-768x174.png",768,174,true],"large":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407-1920x435.png",1920,435,true],"1536x1536":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407-1536x348.png",1536,348,true],"2048x2048":["https:\/\/guardarian.com\/blog\/wp-content\/uploads\/2026\/06\/ig_04078f76f69244d0016a33c1a5f24881948a4b5baa673d5671-e1781776958407-2048x464.png",2048,464,true]},"uagb_author_info":{"display_name":"Ivan","author_link":"https:\/\/guardarian.com\/blog\/author\/ivan"},"uagb_comment_info":0,"uagb_excerpt":"A full breakdown of crypto hacks in May and June 2026: total stolen funds, major incidents, bridge exploits, private key compromises, smart contract vulnerabilities and what users should 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