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Crypto hacks classed as Input Validation
Data as of 3 October 2026
70 recorded incidents classed as Input Validation took $755.4M in total between 2019 and 2026. The largest was Portal, $326.0M in 2022. That is 5.4% of all incidents in DefiLlama's record and 3.6% 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 Input Validation 2019 $480K lost
1 incidents 2020 $19.7M lost
1 incidents 2021 $5.2M lost
5 incidents 2022 $531.0M lost
17 incidents 2023 $86.6M lost
9 incidents 2024 $91.3M lost
13 incidents 2025 $1.4M lost
5 incidents 2026 $19.8M lost
19 incidents Incidents per year classed as Input Validation, with value lost in millions of US dollars. Source: DefiLlama, retrieved 3 October 2026. Incidents classed as Input Validation Incidents classed as Input Validation. Newest first. Source: DefiLlama.
Date Incident Class Technique Chains Amount 2026-09-16 Nimiq Input Validation Signature Verification Flaw Polygon $50K 2026-08-08 Atomic Green Input Validation Signature Replay Arbitrum $30K 2026-08-07 Ravencoin Input Validation Missing Input Validation Ravencoin $0 2026-07-25 Projekt Input Validation Missing Input Validation Ethereum $560K 2026-07-23 Lien Input Validation Missing Input Validation Ethereum $542K 2026-07-21 Wanchain Input Validation Signature Verification Flaw Cardano $10.0M 2026-07-21 FlashTrade Input Validation Missing Input Validation Solana $98K 2026-07-13 Lumi Finance Input Validation Signature Verification Flaw Arbitrum $270K 2026-06-25 Lixir Finance Input Validation Signature Verification Flaw Ethereum $12K 2026-06-01 Gnosis Pay Input Validation Signature Verification Flaw Gnosis Chain $1.5M 2026-05-23 Mure Input Validation Signature Verification Flaw Ethereum $12K 2026-05-20 RetoSwap Input Validation Missing Input Validation Monero $2.7M 2026-05-01 Bisq Input Validation Missing Input Validation Bitcoin $550K 2026-04-26 Litecoin Input Validation Missing Input Validation Litecoin $0 2026-04-23 Giddy Input Validation Incomplete Signature Coverage Ethereum $1.3M 2026-04-22 Kipseli Input Validation Missing Input Validation Base $72K 2026-04-20 Juicebox V3 Input Validation Missing Input Validation Ethereum $52K 2026-04-13 Dango Input Validation Missing Input Validation Dango $1.9M 2026-03-11 DBXen Input Validation Missing Input Validation Ethereum $150K 2025-08-30 Cozy V2 Input Validation Missing Input Validation Optimism $427K 2025-08-25 Panoptic V1.1 Input Validation Hash Collision Base , Unichain, Ethereum $0 2025-06-25 Silo Finance Input Validation Missing Input Validation Ethereum $546K 2025-05-27 Usual USD0 Input Validation Missing Input Validation Ethereum $43K 2025-02-18 Cardex Input Validation Signature Verification Flaw Abstract $400K 2024-11-15 ThalaSwap Input Validation Missing Input Validation Aptos $25.5M 2024-11-11 DeltaPrime Input Validation Missing Input Validation Arbitrum , Avalanche $4.8M 2024-09-23 Bankroll Network Input Validation Missing Input Validation BSC $235K 2024-09-11 Omnipus Input Validation Missing Input Validation Ethereum $30K 2024-08-01 Convergence Input Validation Missing Input Validation Ethereum $210K 2024-04-24 YIEDL Input Validation Missing Input Validation BSC $150K 2024-04-23 Magpie Protocol Input Validation Missing Input Validation Ethereum , Polygon , BSC , Blast, Avalanche , Arbitrum , Optimism , Base , zkSync Era, Polygon zkEVM$129K 2024-04-19 Hedgey Input Validation Missing Input Validation Arbitrum , Ethereum $44.7M 2024-03-28 PrismaLST Input Validation Missing Input Validation Ethereum $11.6M 2024-02-16 ParticleTrade Input Validation Missing Input Validation Ethereum $140K 2024-02-15 Miner Input Validation Missing Input Validation Ethereum $466K 2024-02-01 Affine Protocol Input Validation Missing Input Validation Ethereum $88K 2024-01-16 Bungee Input Validation Missing Input Validation Ethereum $3.3M 2023-12-31 Orbit Bridge Input Validation Signature Verification Flaw Ethereum $81.7M 2023-12-20 Transit Finance Input Validation Missing Input Validation BSC , Ethereum $110K 2023-12-06 TIME Input Validation Missing Input Validation Ethereum $190K 2023-10-29 Astrid Finance Input Validation Missing Input Validation Ethereum $228K 2023-09-06 GMBL.COMPUTER Input Validation Signature Verification Flaw Arbitrum $770K 2023-07-03 AzukiDAO Input Validation Signature Replay Ethereum $68K 2023-04-10 SushiSwap Input Validation Missing Input Validation Ethereum , Arbitrum , Optimism , BSC $3.3M 2023-02-15 Multichain Input Validation Signature Verification Flaw Ethereum $130K 2023-01-17 OmniEstate Input Validation Missing Input Validation BSC $71K 2022-12-05 RFB Input Validation Missing Input Validation BSC $0 2022-11-18 Polynomial Input Validation Missing Input Validation Optimism $7K 2022-11-16 SheepFarm Input Validation Missing Input Validation BSC $72K 2022-11-02 Skyward Finance Input Validation Missing Input Validation NEAR $3.0M 2022-10-27 Team Finance Input Validation Missing Input Validation Ethereum $15.8M 2022-10-21 Bond Protocol Input Validation Missing Input Validation Ethereum $300K 2022-10-02 Transit Swap Input Validation Missing Input Validation Ethereum , BSC $28.9M 2022-07-01 Quixotic Input Validation Signature Verification Flaw Optimism $100K 2022-06-08 ApolloX Input Validation Signature Verification Flaw BSC $2.1M 2022-03-23 Cashio Input Validation Missing Input Validation Solana $52.8M 2022-03-09 Fantasm Finance Input Validation Missing Input Validation Fantom $2.6M 2022-03-03 Treasure Input Validation Missing Input Validation Arbitrum $1.4M 2022-02-08 Superfluid Input Validation Missing Input Validation Polygon $8.7M 2022-02-06 Meter Input Validation Missing Input Validation Ethereum $7.7M 2022-02-02 Portal Input Validation Signature Verification Flaw Solana $326.0M 2022-01-28 Qubit Input Validation Missing Input Validation BSC $80.0M 2022-01-18 Multichain Input Validation Missing Input Validation Ethereum $1.4M 2021-10-18 Glide Finance Input Validation Missing Input Validation Elastos $300K 2021-08-15 Ref Finance Input Validation Missing Input Validation NEAR $3.2M 2021-06-25 xWin Finance Input Validation Missing Input Validation BSC $270K 2021-06-07 88mph Input Validation Missing Input Validation Ethereum $0 2021-02-09 Growth DeFi Input Validation Missing Input Validation Ethereum $1.4M 2020-11-22 Pickle Input Validation Missing Input Validation Ethereum $19.7M 2019-12-23 Nuls Input Validation Signature Verification Flaw NULS $480K
What this measures, and what it does not Incidents, classes, techniques and amounts are DefiLlama's record. Its dashboard and documentation give no method note: they do not say how incidents enter the record, which date's prices an amount uses, or whether amounts are before or after any recovery. If the record depends on public reporting, it will be most complete for the largest events on the most watched chains, so a chain's count may reflect where value and attention concentrate as much as where code is weakest. Chain figures overlap: a multi-chain incident counts in full on every chain it touched. Absence from this record is not evidence of safety.
Read: How crypto gets hacked: the incidents, classified
Source: DefiLlama , retrieved 3 October 2026,
under its open methodology. Figures are a dated snapshot, not a live feed.