cryptonist

Hacks

Crypto hacks classed as Protocol Logic

Data as of 3 October 2026

173 recorded incidents classed as Protocol Logic took $252.4M in total between 2014 and 2026. The largest was Alpha Finance, $37.5M in 2021. That is 13.4% of all incidents in DefiLlama's record and 1.2% of the value lost. Amounts are the losses DefiLlama records, and its record does not say whether they are before or after any recovery. Data as of 3 October 2026.

By year, classed as Protocol Logic

  • 2014 $650K lost
    2 incidents
  • 2015 $0 lost
    0 incidents
  • 2016 $0 lost
    0 incidents
  • 2017 $0 lost
    0 incidents
  • 2018 $1.9M lost
    8 incidents
  • 2019 $0 lost
    1 incidents
  • 2020 $809K lost
    5 incidents
  • 2021 $139.5M lost
    21 incidents
  • 2022 $24.5M lost
    17 incidents
  • 2023 $18.5M lost
    24 incidents
  • 2024 $18.6M lost
    38 incidents
  • 2025 $22.7M lost
    19 incidents
  • 2026 $25.2M lost
    38 incidents
Incidents per year classed as Protocol Logic, with value lost in millions of US dollars. Source: DefiLlama, retrieved 3 October 2026.

Incidents classed as Protocol Logic

Incidents classed as Protocol Logic. Newest first. Source: DefiLlama.
DateIncidentClass TechniqueChainsAmount
2026-09-30 SKYDAO Protocol Logic Swap Logic Flaw BSC $183K
2026-09-23 Meter Protocol Logic Unknown Meter, BSC, Ethereum $0
2026-09-21 DoinGud Protocol Logic Swap Logic Flaw Polygon $35K
2026-09-19 MultiversX Protocol Logic Unknown MultiversX $0
2026-09-07 Cozy V2 Protocol Logic Unknown Optimism $163K
2026-09-05 Dream Health Chain Protocol Logic Reward Logic Flaw BSC $72K
2026-08-29 Permapod Protocol Logic Unknown ZIGChain $0
2026-08-28 Ajna V2 Protocol Logic Liquidation Logic Flaw Ethereum $775K
2026-08-28 Avici Protocol Logic Withdrawal Logic Flaw Solana $501K
2026-08-27 CCC Protocol Logic Swap Logic Flaw BSC $117K
2026-08-25 FH Token Protocol Logic Swap Logic Flaw BSC $20K
2026-08-22 TAC Protocol Logic Withdrawal Logic Flaw TAC $7.5M
2026-08-18 Maya Protocol Protocol Logic Withdrawal Logic Flaw Mayachain $1.7M
2026-07-19 Allbridge Core Protocol Logic Withdrawal Logic Flaw Solana $1.6M
2026-07-16 DefiTuna Lending Protocol Logic Swap Logic Flaw Solana $580K
2026-07-13 Chi Protocol Protocol Logic Redeem Logic Flaw Ethereum $9K
2026-07-02 Hinkal Protocol Logic Deposit Logic Flaw Ethereum $820K
2026-06-25 Ocean Protocol Protocol Logic Deposit Logic Flaw Polygon $128K
2026-06-17 DIP Protocol Logic Swap Logic Flaw BSC $111K
2026-06-07 Ambient Protocol Logic Deposit Logic Flaw Ethereum $111K
2026-06-03 ATM Protocol Logic Swap Logic Flaw BSC $243K
2026-06-03 GPU.NET Protocol Logic Unknown Ethereum $11K
2026-05-30 AFI Protocol Protocol Logic Unknown Ethereum $480K
2026-05-25 WUSD.fi/Glove Protocol Logic Reward Logic Flaw Ethereum $200K
2026-05-19 HermesVault Protocol Logic Withdrawal Logic Flaw Algorand $30K
2026-05-17 MetaSea Protocol Logic Withdrawal Logic Flaw Arbitrum $110K
2026-05-04 SmartCredit Protocol Logic Unknown Ethereum $72K
2026-04-29 Sweat Foundation Protocol Logic Withdrawal Logic Flaw NEAR $3.5M
2026-04-29 Aftermath Perps Protocol Logic Withdrawal Logic Flaw Sui $1.1M
2026-04-26 Scallop Lend Protocol Logic Reward Logic Flaw Sui $142K
2026-04-20 Transit Finance Protocol Logic Unknown Ethereum $258K
2026-03-28 GoonFi Protocol Logic Swap Logic Flaw Solana $254K
2026-03-28 VTSwapHook Protocol Logic Swap Logic Flaw Arbitrum $0
2026-01-29 Revert Lend Protocol Logic Staking Logic Flaw Base $50K
2026-01-20 SynapLogic Protocol Logic Unknown Base $144K
2026-01-13 YO Protocol Protocol Logic Missing Slippage Check Ethereum $3.6M
2026-01-10 FutureSwap Protocol Logic Withdrawal Logic Flaw Arbitrum $395K
2026-01-01 PRXVT Protocol Logic Staking Logic Flaw Base $97K
2025-12-11 0G Labs Protocol Logic Withdrawal Logic Flaw 0G $516K
2025-11-24 Agentic FoF Protocol Logic Unknown Ethereum $531K
2025-11-22 Raga Finance Protocol Logic Unknown Hyperliquid L1 $19K
2025-11-11 Impermax V3 Protocol Logic Liquidation Logic Flaw Base $380K
2025-10-20 Sharwa.Finance Protocol Logic Swap Logic Flaw Arbitrum $146K
2025-09-12 Kame Aggregator Protocol Logic Swap Logic Flaw Sei $1.3M
2025-08-26 BetterBank Protocol Logic Reward Logic Flaw PulseChain $5.0M
2025-08-13 Grizzifi Protocol Logic Reward Logic Flaw BSC $61K
2025-07-20 Stepp2p Protocol Logic Unknown BSC $43K
2025-04-27 Aventa Protocol Logic Unknown Ethereum $7K
2025-04-07 Tenderize V2 Protocol Logic Unknown Ethereum $11K
2025-03-25 Abracadabra Spell Protocol Logic Liquidation Logic Flaw Arbitrum $13.0M
2025-03-01 Zoth ZeUSD Protocol Logic Swap Logic Flaw Ethereum $285K
2025-03-01 Hegic(old contract) Protocol Logic Withdrawal Logic Flaw Ethereum $80K
2025-02-11 four.meme Protocol Logic Swap Logic Flaw BSC $183K
2025-01-14 The Idols Protocol Logic Reward Logic Flaw Ethereum $324K
2025-01-12 Unilend V2 Protocol Logic Redeem Logic Flaw Ethereum $198K
2025-01-07 IPC AI Protocol Logic Swap Logic Flaw BSC $590K
2025-01-04 Sorra Finance Protocol Logic Reward Logic Flaw Ethereum $41K
2024-12-18 SlurpyCoin Protocol Logic Swap Logic Flaw BSC $3K
2024-12-07 MAAT Protocol Protocol Logic Withdrawal Logic Flaw BSC $168K
2024-12-04 Vestra DAO Protocol Logic Staking Logic Flaw Ethereum $500K
2024-12-01 Clipper Protocol Logic Deposit Logic Flaw Optimism, Base $450K
2024-11-24 Proxy_b7e1 Protocol Logic Unknown BSC $9K
2024-11-18 Tectonic Protocol Logic Unknown Cronos $0
2024-11-17 MFT Protocol Logic Unknown BSC $34K
2024-11-11 zkFinance Protocol Logic Unknown zkSync Era $200K
2024-11-07 ChiSale Protocol Logic Unknown Ethereum $16K
2024-11-05 RPP Protocol Logic Unknown BSC $14K
2024-10-25 Base Lending Protocol Logic Deposit Logic Flaw Base $1.0M
2024-10-24 Ramses Exchange Protocol Logic Reward Logic Flaw Arbitrum $93K
2024-09-26 Onyx V2 Protocol Logic Liquidation Logic Flaw Ethereum $3.8M
2024-09-20 DOGGO Protocol Logic Withdrawal Logic Flaw Ethereum $7K
2024-09-13 OTSea Protocol Logic Reward Logic Flaw Ethereum $26K
2024-08-12 PolyNetwork Protocol Logic Unknown PolyNetwork $5.0M
2024-08-12 iVest Protocol Logic Unknown BSC $190K
2024-07-05 DefiPlaza Protocol Logic Swap Logic Flaw Ethereum $200K
2024-06-27 APEMAGA Protocol Logic Unknown Ethereum $32K
2024-06-16 WIFCOIN Protocol Logic Unknown Ethereum $0
2024-06-14 AutoChain Global Protocol Logic Unknown BSC $113K
2024-06-10 JokInTheBox Protocol Logic Withdrawal Logic Flaw Ethereum $34K
2024-05-31 TLN Protocol Protocol Logic Unknown BSC $280K
2024-05-28 EXcommunity Protocol Logic Unknown BSC $37K
2024-05-26 NORMIE Protocol Logic Unknown Base $882K
2024-05-22 TonUP Protocol Logic Reward Logic Flaw TON $108K
2024-05-10 Tsuru Protocol Logic Unknown Base $410K
2024-05-09 Bloom Protocol Logic Unknown Blast $540K
2024-04-08 SQUID Protocol Logic Swap Logic Flaw BSC $87K
2024-04-01 OpenLeverage Protocol Logic Unknown BSC $236K
2024-03-29 Lava Protocol Logic Liquidation Logic Flaw Arbitrum $340K
2024-03-15 MOBOX Protocol Logic Borrow Logic Flaw Optimism $750K
2024-03-12 BBT Protocol Logic Unknown Ethereum $0
2024-03-11 Blastoff Protocol Logic Unknown Blast $600K
2024-03-09 Juice Finance Protocol Logic Reward Logic Flaw Ethereum $54K
2024-03-07 GHT Protocol Logic Unknown Ethereum $0
2024-02-22 Tectonic Protocol Logic Unknown Cronos $250K
2024-02-08 Starlay Finance Protocol Logic Redeem Logic Flaw Acala $2.1M
2023-12-22 Pine Protocol Protocol Logic Swap Logic Flaw Ethereum $95K
2023-11-25 TheNFTV2 Protocol Logic Withdrawal Logic Flaw Ethereum $19K
2023-11-06 TheStandard.io Protocol Logic Swap Logic Flaw Arbitrum $290K
2023-09-05 Floor Dao Protocol Logic Reward Logic Flaw Ethereum $64K
2023-07-20 Utopia Protocol Logic Swap Logic Flaw BSC $119K
2023-07-20 FFIST Protocol Logic Reward Logic Flaw BSC $110K
2023-07-12 Platypus Finance Protocol Logic Withdrawal Logic Flaw Avalanche $50K
2023-07-04 Rodeo Protocol Logic Unknown Arbitrum $90K
2023-06-23 Shido Protocol Logic Unknown BSC $239K
2023-06-01 Cellframe Protocol Logic Swap Logic Flaw BSC $76K
2023-05-30 El Dorado Exchange Protocol Logic Swap Logic Flaw Arbitrum $120K
2023-05-23 LunaFi Protocol Logic Reward Logic Flaw Polygon $35K
2023-05-20 Swap-LP Protocol Logic Swap Logic Flaw BSC $1.1M
2023-05-19 WDZD Swap Protocol Logic Swap Logic Flaw BSC $1.0M
2023-05-07 Art Coin Protocol Logic Deposit Logic Flaw Ethereum $331K
2023-05-01 pcash Protocol Logic Unknown EOS $2.0M
2023-05-01 Level Perps Protocol Logic Reward Logic Flaw BSC $1.1M
2023-04-16 Swapos V2 Protocol Logic Swap Logic Flaw Ethereum $468K
2023-04-02 Allbridge Core Protocol Logic Swap Logic Flaw BSC $573K
2023-03-21 Indexed Finance Protocol Logic Swap Logic Flaw Ethereum $10K
2023-02-16 Platypus Finance Protocol Logic Unknown Avalanche $8.5M
2023-01-21 Omm Protocol Logic Redeem Logic Flaw Icon $1.9M
2023-01-19 Thoreum Finance Protocol Logic Swap Logic Flaw BSC $66K
2023-01-03 GDS Protocol Logic Reward Logic Flaw BSC $187K
2022-12-14 Nimbus Protocol Logic Reward Logic Flaw BSC $76K
2022-12-02 Overnight Finance Protocol Logic Unknown Avalanche $0
2022-11-29 SEAMAN Protocol Logic Unknown BSC $7K
2022-11-21 sDAO Protocol Logic Unknown BSC $13K
2022-11-17 UEarnPool Protocol Logic Reward Logic Flaw BSC $16K
2022-10-20 Ethereum Alarm Clock Protocol Logic Reward Logic Flaw Ethereum $260K
2022-10-17 MTDAO Protocol Logic Deposit Logic Flaw BSC $702K
2022-10-15 Earning.Farm Protocol Logic Withdrawal Logic Flaw Ethereum $1.2M
2022-09-08 New Free DAO Protocol Logic Reward Logic Flaw BSC $1.3M
2022-08-24 KaoyaSwap Protocol Logic Swap Logic Flaw BSC $118K
2022-08-10 XSTABLE Protocol Protocol Logic Unknown Ethereum $0
2022-06-26 XCarnival Protocol Logic Deposit Logic Flaw Ethereum $3.8M
2022-06-08 Osmosis Protocol Logic Withdrawal Logic Flaw Osmosis $5.0M
2022-06-07 Equalizer Exchange Protocol Logic Withdrawal Logic Flaw Ethereum, BSC, Polygon, Optimism $50K
2022-05-10 OWNLY Protocol Logic Withdrawal Logic Flaw BSC $37K
2022-04-30 Saddle Finance Protocol Logic Swap Logic Flaw Ethereum $11.0M
2022-01-25 OpenSea Protocol Logic Withdrawal Logic Flaw Ethereum $1.0M
2021-12-30 SashimiSwap Protocol Logic Swap Logic Flaw Ethereum $210K
2021-12-14 NerveBridge Protocol Logic Swap Logic Flaw BSC $537K
2021-11-30 MonoX Protocol Logic Swap Logic Flaw Ethereum, Polygon $31.4M
2021-11-27 Lever Protocol Logic Borrow Logic Flaw BSC $652K
2021-11-15 Nerve Protocol Logic Swap Logic Flaw BSC $537K
2021-10-29 AutoShark Protocol Logic Reward Logic Flaw BSC $580K
2021-09-12 Zabu Finance Protocol Logic Deposit Logic Flaw Avalanche $3.2M
2021-08-03 Popsicle Finance Protocol Logic Reward Logic Flaw Ethereum $20.7M
2021-07-22 THORChain DEX Protocol Logic Withdrawal Logic Flaw Ethereum $8.0M
2021-07-14 ApeRocket Protocol Logic Reward Logic Flaw BSC $1.3M
2021-06-28 Safe Dollar Protocol Logic Reward Logic Flaw Polygon $248K
2021-06-22 Eleven Finance Protocol Logic Withdrawal Logic Flaw BSC $4.5M
2021-06-16 Alchemix V2 Protocol Logic Borrow Logic Flaw Ethereum $6.5M
2021-06-10 EvoDefi Protocol Logic Reward Logic Flaw BSC $1.0M
2021-05-26 Merlin Protocol Logic Reward Logic Flaw BSC $680K
2021-05-24 AutoShark Protocol Logic Reward Logic Flaw BSC $823K
2021-05-17 BearnFi Protocol Logic Withdrawal Logic Flaw BSC $18.0M
2021-04-05 Polkatrain Protocol Logic Reward Logic Flaw Polkadot $3.0M
2021-02-13 Alpha Finance Protocol Logic Borrow Logic Flaw Ethereum $37.5M
2021-01-27 SushiSwap Protocol Logic Swap Logic Flaw Ethereum $104K
2021-01-25 Badger DAO Protocol Logic Swap Logic Flaw Ethereum $104K
2020-09-20 Soda Protocol Protocol Logic Withdrawal Logic Flaw Ethereum $160K
2020-08-04 Opyn Protocol Logic Withdrawal Logic Flaw Ethereum $371K
2020-04-25 Hegic Protocol Logic Deposit Logic Flaw Ethereum $29K
2020-04-08 Bisq Protocol Logic Withdrawal Logic Flaw Bitcoin $248K
2020-02-03 LuckLambo104 Protocol Logic Unknown Tron $2K
2019-04-11 TronWow Protocol Logic Unknown Tron $0
2018-12-19 EOS Max Protocol Logic Unknown EOS $0
2018-12-19 ToBet Protocol Logic Unknown EOS $0
2018-11-19 EOS Lelego Protocol Logic Unknown EOS $0
2018-11-11 EOS.WIN Protocol Logic Unknown EOS $9K
2018-11-10 EOSDice Protocol Logic Unknown EOS $25K
2018-11-08 FFGame Protocol Logic Unknown EOS $7K
2018-10-26 EosRoyale Protocol Logic Unknown EOS $60K
2018-05-22 Verge Protocol Logic Withdrawal Logic Flaw Verge $1.8M
2014-03-04 Poloniex Protocol Logic Withdrawal Logic Flaw Bitcoin $50K
2014-03-02 Flexcoin Protocol Logic Withdrawal Logic Flaw Bitcoin $600K

Source: DefiLlama, retrieved 3 October 2026, under its open methodology. Figures are a dated snapshot, not a live feed.