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Before 2023 · Any size: 443 publicly reported crypto security incidents, about $12.81B lost in total. Data comes from the public DefiLlama incident dataset (back to 2011), updated weekly. Click an incident for details. Breakdown by technique → · Weekly and monthly reports →

Last 90 days2026202520242023Before 2023All years
Any size$1M+$10M+$100M+
DateIncidentTechniqueReported loss
2018-06-21BithumbSecurity incidentEthereumFrontend & InfrastructureKey Leaked via Infrastructure$31.0M
2018-06-10CoinrailSecurity incidentEthereumAccess ControlImproper Access Control$37.2M
2018-06-02ZenCashSecurity incidentZenCashBridge & Cross-ChainForged Proof$550K
2018-05-22VergeSecurity incidentVergeProtocol LogicWithdrawal Logic Flaw$1.8M
2018-05-16Bitcoin GoldSecurity incidentBitcoin GoldBridge & Cross-ChainForged Proof$18.0M
2018-05-13MonaCoinSecurity incidentMonaCoinBridge & Cross-ChainForged Proof$90K
2018-04-24SmartMeshSecurity incidentEthereumToken & Share AccountingInfinite Mint—
2018-04-22BeautyChainSecurity incidentEthereumToken & Share AccountingInfinite Mint—
2018-04-21GateSecurity incidentMajorKey CompromisePrivate Key Compromised$235.0M
2018-04-12CoinsecureSecurity incidentBitcoinKey CompromisePrivate Key Compromised$3.3M
2018-02-12BitGrailSecurity incidentMajorNanoAccess ControlImproper Access Control$170.0M
2018-01-26CoincheckSecurity incidentMajorNEMKey CompromiseHot Wallet Key Compromised$534.0M
2017-12-20EtherDeltaSecurity incidentEthereumFrontend & InfrastructureDNS Hijack$1.4M
2017-12-19YoubitSecurity incidentBitcoinKey CompromiseHot Wallet Key Compromised—
2017-12-08NiceHashSecurity incidentBitcoinFrontend & InfrastructureKey Leaked via Infrastructure$64.0M
2017-11-19TetherSecurity incidentBitcoinKey CompromisePrivate Key Compromised$31.0M
2017-11-09Parity MultisigSecurity incidentMajorEthereumAccess ControlUninitialized Proxy$150.0M
2017-07-18CoinDashSecurity incidentEthereumFrontend & InfrastructureFrontend Compromise$7.7M
2017-07-01ParitySecurity incidentEthereumAccess ControlUninitialized Proxy$30.0M
2017-04-27YapizonSecurity incidentBitcoinKey CompromiseHot Wallet Key Compromised$4.8M
2016-10-13BitcurexSecurity incidentBitcoinKey CompromiseHot Wallet Key Compromised$1.5M
2016-08-02BitfinexSecurity incidentBitcoinKey CompromiseHot Wallet Key Compromised$72.0M
2016-06-17The DAOSecurity incidentEthereumReentrancyReentrancy$60.0M
2016-05-14GatecoinSecurity incidentEthereumAccess ControlImproper Access Control$2.0M
2016-04-07ShapeShiftSecurity incidentBitcoinKey CompromisePrivate Key Compromised$230K

Source: DefiLlama Hacks. This section restates public reports and is not OceanAlt's judgment of any party. To report an error, email business@oceanalt.com; we review within 48 hours.