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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
2021-03-01SeascapeSecurity incidentEthereumKey CompromisePrivate Key Compromised$500K
2021-02-27FurucomboSecurity incidentEthereumAccess ControlDelegatecall Hijack$14.0M
2021-02-13Alpha FinanceSecurity incidentEthereumProtocol LogicBorrow Logic Flaw$37.5M
2021-02-12BT FinanceSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$1.5M
2021-02-09Growth DeFiSecurity incidentEthereumInput ValidationMissing Input Validation$1.4M
2021-02-05Yearn FinanceSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$11.0M
2021-02-01CryptopiaSecurity incidentMultipleKey CompromiseHot Wallet Key Compromised$45K
2021-01-27SushiSwapSecurity incidentEthereumProtocol LogicSwap Logic Flaw$104K
2021-01-25Badger DAOSecurity incidentEthereumProtocol LogicSwap Logic Flaw$104K
2020-12-29Cover ProtocolSecurity incidentEthereumToken & Share AccountingArithmetic Error$9.4M
2020-12-28LuBianSecurity incidentMajorBitcoinKey CompromiseWeak Key Generation$3.50B
2020-12-26AltillySecurity incidentMultipleFrontend & InfrastructureAPI Key Compromised$750K
2020-12-24LivecoinSecurity incidentMultipleFrontend & InfrastructureAPI Key Compromised$3.3M
2020-12-21ExmoSecurity incidentMultipleKey CompromiseHot Wallet Key Compromised$10.5M
2020-12-18Warp ProtocolSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$7.8M
2020-12-14Nexus MutualSecurity incidentEthereumFrontend & InfrastructureKey Leaked via Infrastructure$8.0M
2020-12-08AeternitySecurity incidentAeternityKey CompromiseValidator Key Compromised$5.2M
2020-12-02Compounder FinanceSecurity incidentEthereumRugpullAdmin Drain$12.5M
2020-11-30SushiSwapSecurity incidentEthereumAccess ControlImproper Access Control$15K
2020-11-22PickleSecurity incidentEthereumInput ValidationMissing Input Validation$19.7M
2020-11-17Origin ProtocolSecurity incidentEthereumReentrancyReentrancy$7.7M
2020-11-16CheeseBankSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$3.3M
2020-11-14ValueDefiSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$7.4M
2020-11-12AkropolisSecurity incidentEthereumReentrancyReentrancy$2.0M
2020-11-08GrinSecurity incidentGrinKey CompromiseValidator Key Compromised—

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.