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All years · Any size: 1,297 publicly reported crypto security incidents, about $21.05B 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 →

DateIncidentTechniqueReported loss
2026-06-23Royal.ioSecurity incidentPolygonToken & Share AccountingIncorrect Share Accounting$263K
2022-10-20Ethereum Alarm ClockSecurity incidentEthereumProtocol LogicReward Logic Flaw$260K
2023-10-13WiseLendingSecurity incidentEthereumToken & Share AccountingRounding Error$260K
2026-04-20Transit FinanceSecurity incidentEthereumProtocol LogicUnknown$258K
2026-03-17dTRINITY dLENDSecurity incidentEthereumToken & Share AccountingFirst Depositor Attack$257K
2022-06-04BAYC/OthersideSecurity incidentEthereumSocial EngineeringPhishing$257K
2026-03-28GoonFiSecurity incidentSolanaProtocol LogicSwap Logic Flaw$254K
2026-02-23DGLDSecurity incidentBaseToken & Share AccountingInfinite Mint$250K
2024-10-14LeadBlock's Morpho Blue MarketSecurity incidentEthereumOracle ManipulationOracle Misconfiguration$250K
2023-08-19Harbor ProtocolSecurity incidentComdexOracle ManipulationSpot Price Manipulation$250K
2025-12-12ZEROBASESecurity incidentBSCAccess ControlToken Approval Abuse$250K
2012-09-05BitfloorSecurity incidentBitcoinFrontend & InfrastructureKey Stored Publicly$250K
2023-02-04Sperax USDSecurity incidentArbitrumToken & Share AccountingUnbacked Mint$250K
2022-10-25ULMESecurity incidentBSCAccess ControlImproper Access Control$250K
2021-07-28PolyYeld FinanceSecurity incidentPolygonToken & Share AccountingInfinite Mint$250K
2020-09-10SYFISecurity incidentEthereumToken & Share AccountingArithmetic Error$250K
2024-02-22TectonicSecurity incidentCronosProtocol LogicUnknown$250K
2024-12-01Spectral LabsSecurity incidentEthereumAccess ControlToken Approval Abuse$250K
2025-06-20Hacken TokenSecurity incidentKey CompromisePrivate Key Compromised$250K
2023-11-29VelodromeSecurity incidentOptimismFrontend & InfrastructureDNS Hijack$250K
2021-06-28Safe DollarSecurity incidentPolygonProtocol LogicReward Logic Flaw$248K
2020-04-08BisqSecurity incidentBitcoinProtocol LogicWithdrawal Logic Flaw$248K
2026-06-03ATMSecurity incidentBSCProtocol LogicSwap Logic Flaw$243K
2024-12-18HarryPotterObamaSonic10InuSecurity incidentEthereumOracle ManipulationSpot Price Manipulation$243K
2026-03-10Movie TokenSecurity incidentBSCToken & Share AccountingIncorrect Share Accounting$242K

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.