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Protocol Logic hacks

180 incidents classified as Protocol Logic, with $293.4m in known losses.

$293.4m lost across 180 incidents, 13.5% of the ledger

Largest: Mercado Bitcoin ($40.0m), Alpha Finance ($37.5m), MonoX ($31.4m).

Known losses by year: Protocol Logic
DateTargetLostTypeMethodReturned
02 Nov 2026Mercado Bitcoin$40.0mCEXProtocol Logic—
01 Nov 2026Premia V3$437,000DeFi ProtocolWithdrawal Logic Flaw—
31 Oct 2026b14g—DeFi ProtocolProtocol Logic—
08 Oct 2026BitBay$14,838DeFi ProtocolWithdrawal Logic Flaw—
30 Sept 2026SKYDAO$183,483DeFi ProtocolSwap Logic Flaw—
23 Sept 2026Meter—ChainProtocol Logic—
21 Sept 2026DoinGud$35,486NFTfiSwap Logic Flaw—
19 Sept 2026MultiversX$0ChainProtocol Logic—
09 Sept 2026Balancer V1$250,000DeFi ProtocolSwap Logic Flaw—
07 Sept 2026Cozy V2$163,326DeFi ProtocolProtocol Logic—
05 Sept 2026Dream Health Chain$71,800DeFi ProtocolReward Logic Flaw—
29 Aug 2026Permapod—DeFi ProtocolProtocol Logic—
28 Aug 2026Ajna V2$775,400DeFi ProtocolLiquidation Logic Flaw—
28 Aug 2026Avici$500,859Crypto CardWithdrawal Logic Flaw—
27 Aug 2026CCC$117,000TokenSwap Logic Flaw—
25 Aug 2026FH Token$20,000TokenSwap Logic Flaw—
22 Aug 2026TAC$7.5mChainWithdrawal Logic Flaw—
18 Aug 2026Maya Protocol$1.7mDeFi ProtocolWithdrawal Logic Flaw—
19 Jul 2026Allbridge Core$1.6mDeFi ProtocolWithdrawal Logic Flaw—
16 Jul 2026DefiTuna Lending$580,000DeFi ProtocolSwap Logic Flaw—
15 Jul 2026Sonic ICP$276,000DeFi ProtocolWithdrawal Logic Flaw—
13 Jul 2026Chi Protocol$8,500DeFi ProtocolRedeem Logic Flaw—
02 Jul 2026Hinkal$820,000DeFi ProtocolDeposit Logic Flaw—
25 Jun 2026Ocean Protocol$127,861DeFi ProtocolDeposit Logic Flaw—
17 Jun 2026DIP$111,000TokenSwap Logic Flaw—
07 Jun 2026Ambient$110,600DeFi ProtocolDeposit Logic Flaw—
03 Jun 2026GPU.NET$10,600DeFi ProtocolProtocol Logic—
03 Jun 2026ATM$243,000TokenSwap Logic Flaw—
30 May 2026AFI Protocol$480,000DeFi ProtocolProtocol Logic—
25 May 2026WUSD.fi/Glove$200,000Liquidity PoolReward Logic Flaw—
19 May 2026HermesVault$30,000DeFi ProtocolWithdrawal Logic Flaw$26,000
17 May 2026MetaSea$110,000DeFi ProtocolWithdrawal Logic Flaw—
04 May 2026SmartCredit$72,000DeFi ProtocolProtocol Logic—
29 Apr 2026Aftermath Perps$1.1mDeFi ProtocolWithdrawal Logic Flaw—
29 Apr 2026Sweat Foundation$3.5mDeFi ProtocolWithdrawal Logic Flaw—
26 Apr 2026Scallop Lend$142,000DeFi ProtocolReward Logic Flaw—
20 Apr 2026Transit Finance$257,800DeFi ProtocolProtocol Logic—
28 Mar 2026VTSwapHook—DeFi ProtocolSwap Logic Flaw—
28 Mar 2026GoonFi$254,000DeFi ProtocolSwap Logic Flaw—
24 Mar 2026UdonFi Lending—DeFi ProtocolWithdrawal Logic Flaw—
29 Jan 2026Revert Lend$50,000DeFi ProtocolStaking Logic Flaw—
20 Jan 2026SynapLogic$144,000DeFi ProtocolProtocol Logic—
13 Jan 2026YO Protocol$3.6mDeFi ProtocolMissing Slippage Check—
10 Jan 2026FutureSwap$395,000DeFi ProtocolWithdrawal Logic Flaw—
01 Jan 2026PRXVT$97,000DeFi ProtocolStaking Logic Flaw—
11 Dec 20250G Labs$516,000DeFi ProtocolWithdrawal Logic Flaw—
24 Nov 2025Agentic FoF$531,000DeFi ProtocolProtocol Logic—
22 Nov 2025Raga Finance$18,500DeFi ProtocolProtocol Logic—
11 Nov 2025Impermax V3$380,000DeFi ProtocolLiquidation Logic Flaw—
20 Oct 2025Sharwa.Finance$146,000DeFi ProtocolSwap Logic Flaw—
12 Sept 2025Kame Aggregator$1.3mDeFi ProtocolSwap Logic Flaw—
26 Aug 2025BetterBank$5.0mDeFi ProtocolReward Logic Flaw—
13 Aug 2025Grizzifi$61,000DeFi ProtocolReward Logic Flaw—
20 Jul 2025Stepp2p$43,000DeFi ProtocolProtocol Logic—
27 Apr 2025Aventa$7,000DeFi ProtocolProtocol Logic—
07 Apr 2025Tenderize V2$10,850DeFi ProtocolProtocol Logic—
25 Mar 2025Abracadabra Spell$13.0mDeFi ProtocolLiquidation Logic Flaw—
01 Mar 2025Hegic(old contract)$80,000DeFi ProtocolWithdrawal Logic Flaw—
01 Mar 2025Zoth ZeUSD$285,000DeFi ProtocolSwap Logic Flaw—
11 Feb 2025four.meme$183,000DeFi ProtocolSwap Logic Flaw—
14 Jan 2025The Idols$324,000DeFi ProtocolReward Logic Flaw—
12 Jan 2025Unilend V2$197,600DeFi ProtocolRedeem Logic Flaw—
07 Jan 2025IPC AI$590,000TokenSwap Logic Flaw—
04 Jan 2025Sorra Finance$41,000DeFi ProtocolReward Logic Flaw—
18 Dec 2024SlurpyCoin$3,000TokenSwap Logic Flaw—
07 Dec 2024MAAT Protocol$168,173DeFi ProtocolWithdrawal Logic Flaw—
04 Dec 2024Vestra DAO$500,000DeFi ProtocolStaking Logic Flaw—
01 Dec 2024Clipper$450,000DeFi ProtocolDeposit Logic Flaw—
24 Nov 2024Proxy_b7e1$8,500DeFi ProtocolProtocol Logic—
18 Nov 2024Tectonic—DeFi ProtocolProtocol Logic—
17 Nov 2024MFT$33,700DeFi ProtocolProtocol Logic—
11 Nov 2024zkFinance$200,000DeFi ProtocolProtocol Logic—
07 Nov 2024ChiSale$16,300DeFi ProtocolProtocol Logic—
05 Nov 2024RPP$14,100DeFi ProtocolProtocol Logic—
25 Oct 2024Base Lending$1.0mDeFi ProtocolDeposit Logic Flaw—
24 Oct 2024Ramses Exchange$93,000DeFi ProtocolReward Logic Flaw—
26 Sept 2024Onyx V2$3.8mDeFi ProtocolLiquidation Logic Flaw—
20 Sept 2024DOGGO$7,000TokenWithdrawal Logic Flaw—
13 Sept 2024OTSea$26,000DeFi ProtocolReward Logic Flaw—
12 Aug 2024iVest$190,000TokenProtocol Logic—
12 Aug 2024PolyNetwork$5.0mDeFi ProtocolProtocol Logic—
05 Jul 2024DefiPlaza$200,000DeFi ProtocolSwap Logic Flaw—
27 Jun 2024APEMAGA$32,000DeFi ProtocolProtocol Logic—
16 Jun 2024WIFCOIN—TokenProtocol Logic—
14 Jun 2024AutoChain Global$113,000DeFi ProtocolProtocol Logic—
10 Jun 2024JokInTheBox$34,000DeFi ProtocolWithdrawal Logic Flaw—
31 May 2024TLN Protocol$280,000DeFi ProtocolProtocol Logic—
28 May 2024EXcommunity$37,000DeFi ProtocolProtocol Logic—
26 May 2024NORMIE$881,686TokenProtocol Logic—
22 May 2024TonUP$107,600DeFi ProtocolReward Logic Flaw—
10 May 2024Tsuru$410,000DeFi ProtocolProtocol Logic—
09 May 2024Bloom$540,000DeFi ProtocolProtocol Logic—
08 Apr 2024SQUID$87,000TokenSwap Logic Flaw—
01 Apr 2024OpenLeverage$236,000DeFi ProtocolProtocol Logic—
29 Mar 2024Lava$340,000DeFi ProtocolLiquidation Logic Flaw—
15 Mar 2024MOBOX$750,000DeFi ProtocolBorrow Logic Flaw—
12 Mar 2024BBT—DeFi ProtocolProtocol Logic—
11 Mar 2024Blastoff$600,000DeFi ProtocolProtocol Logic—
09 Mar 2024Juice Finance$54,000DeFi ProtocolReward Logic Flaw—
07 Mar 2024GHT—DeFi ProtocolProtocol Logic—
22 Feb 2024Tectonic$250,000DeFi ProtocolProtocol Logic—
08 Feb 2024Starlay Finance$2.1mDeFi ProtocolRedeem Logic Flaw—
22 Dec 2023Pine Protocol$95,000DeFi ProtocolSwap Logic Flaw—
25 Nov 2023TheNFTV2$19,000DeFi ProtocolWithdrawal Logic Flaw—
06 Nov 2023TheStandard.io$290,000DeFi ProtocolSwap Logic Flaw—
05 Sept 2023Floor Dao$64,200DeFi ProtocolReward Logic Flaw—
20 Jul 2023FFIST$110,000TokenReward Logic Flaw—
20 Jul 2023Utopia$119,300TokenSwap Logic Flaw—
12 Jul 2023Platypus Finance$50,000DeFi ProtocolWithdrawal Logic Flaw—
04 Jul 2023Rodeo$90,000DeFi ProtocolProtocol Logic—
23 Jun 2023Shido$238,500DeFi ProtocolProtocol Logic—
01 Jun 2023Cellframe$76,112DeFi ProtocolSwap Logic Flaw—
30 May 2023El Dorado Exchange$120,000DeFi ProtocolSwap Logic Flaw—
23 May 2023LunaFi$35,000DeFi ProtocolReward Logic Flaw—
20 May 2023Swap-LP$1.1mDeFi ProtocolSwap Logic Flaw—
19 May 2023WDZD Swap$1.0mDeFi ProtocolSwap Logic Flaw—
07 May 2023Art Coin$331,000DeFi ProtocolDeposit Logic Flaw—
01 May 2023Level Perps$1.1mDeFi ProtocolReward Logic Flaw—
01 May 2023pcash$2.0mDeFi ProtocolProtocol Logic—
16 Apr 2023Swapos V2$468,000DeFi ProtocolSwap Logic Flaw—
02 Apr 2023Allbridge Core$573,000DeFi ProtocolSwap Logic Flaw—
21 Mar 2023Indexed Finance$9,925DeFi ProtocolSwap Logic Flaw—
16 Feb 2023Platypus Finance$8.5mDeFi ProtocolProtocol Logic$222,634
21 Jan 2023Omm$1.9mDeFi ProtocolRedeem Logic Flaw—
19 Jan 2023Thoreum Finance$65,540DeFi ProtocolSwap Logic Flaw—
03 Jan 2023GDS$187,000DeFi ProtocolReward Logic Flaw—
14 Dec 2022Nimbus$76,000DeFi ProtocolReward Logic Flaw—
02 Dec 2022Overnight Finance—DeFi ProtocolProtocol Logic—
29 Nov 2022SEAMAN$7,000TokenProtocol Logic—
21 Nov 2022sDAO$13,000TokenProtocol Logic—
17 Nov 2022UEarnPool$16,038DeFi ProtocolReward Logic Flaw—
20 Oct 2022Ethereum Alarm Clock$260,000DeFi ProtocolReward Logic Flaw—
17 Oct 2022MTDAO$702,000DeFi ProtocolDeposit Logic Flaw—
15 Oct 2022Earning.Farm$1.2mDeFi ProtocolWithdrawal Logic Flaw—
08 Sept 2022New Free DAO$1.3mDeFi ProtocolReward Logic Flaw—
24 Aug 2022KaoyaSwap$118,000DeFi ProtocolSwap Logic Flaw—
10 Aug 2022XSTABLE Protocol—DeFi ProtocolProtocol Logic—
26 Jun 2022XCarnival$3.8mDeFi ProtocolDeposit Logic Flaw—
08 Jun 2022Osmosis$5.0mDeFi ProtocolWithdrawal Logic Flaw—
07 Jun 2022Equalizer Exchange$50,000DeFi ProtocolWithdrawal Logic Flaw—
10 May 2022OWNLY$37,000DeFi ProtocolWithdrawal Logic Flaw—
30 Apr 2022Saddle Finance$11.0mDeFi ProtocolSwap Logic Flaw—
25 Jan 2022OpenSea$1.0mNFTfiWithdrawal Logic Flaw—
30 Dec 2021SashimiSwap$210,000DeFi ProtocolSwap Logic Flaw—
14 Dec 2021NerveBridge$537,000DeFi ProtocolSwap Logic Flaw—
30 Nov 2021MonoX$31.4mDeFi ProtocolSwap Logic Flaw—
27 Nov 2021Lever$652,000DeFi ProtocolBorrow Logic Flaw—
15 Nov 2021Nerve$537,000DeFi ProtocolSwap Logic Flaw—
29 Oct 2021AutoShark$580,000DeFi ProtocolReward Logic Flaw—
12 Sept 2021Zabu Finance$3.2mDeFi ProtocolDeposit Logic Flaw—
03 Aug 2021Popsicle Finance$20.7mDeFi ProtocolReward Logic Flaw—
22 Jul 2021THORChain DEX$8.0mDeFi ProtocolWithdrawal Logic Flaw—
14 Jul 2021ApeRocket$1.3mDeFi ProtocolReward Logic Flaw—
28 Jun 2021Safe Dollar$248,000DeFi ProtocolReward Logic Flaw—
22 Jun 2021Eleven Finance$4.5mDeFi ProtocolWithdrawal Logic Flaw—
16 Jun 2021Alchemix V2$6.5mDeFi ProtocolBorrow Logic Flaw—
10 Jun 2021EvoDefi$1.0mDeFi ProtocolReward Logic Flaw—
26 May 2021Merlin$680,000DeFi ProtocolReward Logic Flaw—
24 May 2021AutoShark$822,800DeFi ProtocolReward Logic Flaw—
17 May 2021BearnFi$18.0mDeFi ProtocolWithdrawal Logic Flaw—
05 Apr 2021Polkatrain$3.0mDeFi ProtocolReward Logic Flaw—
13 Feb 2021Alpha Finance$37.5mDeFi ProtocolBorrow Logic Flaw—
27 Jan 2021SushiSwap$103,842DeFi ProtocolSwap Logic Flaw—
25 Jan 2021Badger DAO$103,842DeFi ProtocolSwap Logic Flaw—
20 Sept 2020Soda Protocol$160,000DeFi ProtocolWithdrawal Logic Flaw—
04 Aug 2020Opyn$371,000DeFi ProtocolWithdrawal Logic Flaw—
25 Apr 2020Hegic$28,537DeFi ProtocolDeposit Logic Flaw—
08 Apr 2020Bisq$248,000DeFi ProtocolWithdrawal Logic Flaw—
03 Feb 2020LuckLambo104$1,500DeFi ProtocolProtocol Logic—
11 Apr 2019TronWow—DeFi ProtocolProtocol Logic—
19 Dec 2018EOS Max—DeFi ProtocolProtocol Logic—
19 Dec 2018ToBet—DeFi ProtocolProtocol Logic—
19 Nov 2018EOS Lelego—DeFi ProtocolProtocol Logic—
11 Nov 2018EOS.WIN$9,180DeFi ProtocolProtocol Logic—
10 Nov 2018EOSDice$25,100DeFi ProtocolProtocol Logic—
08 Nov 2018FFGame$7,200DeFi ProtocolProtocol Logic—
26 Oct 2018EosRoyale$60,000DeFi ProtocolProtocol Logic—
22 May 2018Verge$1.8mChainWithdrawal Logic Flaw—
04 Mar 2014Poloniex$50,000CEXWithdrawal Logic Flaw—
02 Mar 2014Flexcoin$600,000CEXWithdrawal Logic Flaw—

Amounts are DefiLlama’s estimates and can change as incidents are revalued. Its returned figure can include money a company repaid itself, not only funds recovered from attackers. Source: DefiLlama.

Cite this Bitminer.io, “Protocol Logic hacks”, data to 2 November 2026, https://bitminer.io/ledger/failures/method/protocol-logic/. How this is built