Ledger All ledgers
Crypto failures in 2020
46 crypto hacks, exploits and thefts in 2020, with $3.98bn in known losses.
$3.98bn lost across 46 incidents
The largest crypto hack of 2020 was LuBian, at $3.50bn. $0 is recorded as returned or repaid.
Jan
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Nov
$3.56bnDec
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 29 Dec 2020 | Cover Protocol | $9.4m | DeFi Protocol | Arithmetic Error | — |
| 28 Dec 2020 | LuBian | $3.50bn | Other | Weak Key Generation | — |
| 26 Dec 2020 | Altilly | $750,000 | CEX | API Key Compromised | — |
| 24 Dec 2020 | Livecoin | $3.3m | CEX | API Key Compromised | — |
| 21 Dec 2020 | Exmo | $10.5m | CEX | Hot Wallet Key Compromised | — |
| 18 Dec 2020 | Warp Protocol | $7.8m | DeFi Protocol | Spot Price Manipulation | — |
| 14 Dec 2020 | Nexus Mutual | $8.0m | DeFi Protocol | Key Leaked via Infrastructure | — |
| 08 Dec 2020 | Aeternity | $5.2m | Chain | Validator Key Compromised | — |
| 02 Dec 2020 | Compounder Finance | $12.5m | DeFi Protocol | Admin Drain | — |
| 30 Nov 2020 | SushiSwap | $15,000 | DeFi Protocol | Improper Access Control | — |
| 22 Nov 2020 | Pickle | $19.7m | DeFi Protocol | Missing Input Validation | — |
| 17 Nov 2020 | Origin Protocol | $7.7m | DeFi Protocol | Reentrancy | — |
| 16 Nov 2020 | CheeseBank | $3.3m | DeFi Protocol | Spot Price Manipulation | — |
| 14 Nov 2020 | ValueDefi | $7.4m | DeFi Protocol | Spot Price Manipulation | — |
| 12 Nov 2020 | Akropolis | $2.0m | DeFi Protocol | Reentrancy | — |
| 08 Nov 2020 | Grin | — | Chain | Validator Key Compromised | — |
| 06 Nov 2020 | Ledger | $271,000 | Wallet | Phishing | — |
| 02 Nov 2020 | Axion | $500,000 | DeFi Protocol | Infinite Mint | — |
| 30 Oct 2020 | EtherCrash | $2.5m | DeFi Protocol | Hot Wallet Key Compromised | — |
| 26 Oct 2020 | Harvest Finance | $24.0m | DeFi Protocol | Spot Price Manipulation | — |
| 11 Oct 2020 | WLEO | $42,000 | DeFi Protocol | Infinite Mint | — |
| 29 Sept 2020 | KuCoin | $281.0m | CEX | Hot Wallet Key Compromised | — |
| 28 Sept 2020 | Eminence | $15.0m | DeFi Protocol | Spot Price Manipulation | — |
| 20 Sept 2020 | Soda Protocol | $160,000 | DeFi Protocol | Withdrawal Logic Flaw | — |
| 10 Sept 2020 | Coral | $420,000 | DeFi Protocol | Reentrancy | — |
| 10 Sept 2020 | SYFI | $250,000 | DeFi Protocol | Arithmetic Error | — |
| 08 Sept 2020 | Eterbase | $5.4m | CEX | Hot Wallet Key Compromised | — |
| 18 Aug 2020 | OKEx | $5.6m | CEX | Forged Proof | — |
| 06 Aug 2020 | Ethereum Classic | $1.7m | Layer 1 | Forged Proof | — |
| 04 Aug 2020 | Opyn | $371,000 | DeFi Protocol | Withdrawal Logic Flaw | — |
| 31 Jul 2020 | 2gether | $1.2m | CEX | Key Leaked via Infrastructure | — |
| 11 Jul 2020 | Cashaa | $3.1m | CEX | Key Leaked via Infrastructure | — |
| 01 Jul 2020 | Vether | $450,000 | DeFi Protocol | Improper Access Control | — |
| 28 Jun 2020 | Balancer | $500,000 | DeFi Protocol | Incorrect Share Accounting | — |
| 18 Jun 2020 | Bancor V3 | $544,885 | DeFi Protocol | Improper Access Control | — |
| 25 Apr 2020 | Hegic | $28,537 | DeFi Protocol | Deposit Logic Flaw | — |
| 19 Apr 2020 | dForce Lending | $25.0m | DeFi Protocol | Reentrancy | — |
| 18 Apr 2020 | Uniswap V1 | $220,000 | DeFi Protocol | Reentrancy | — |
| 08 Apr 2020 | Bisq | $248,000 | DeFi Protocol | Withdrawal Logic Flaw | — |
| 12 Mar 2020 | MakerDAO | $8.3m | DeFi Protocol | Stale Oracle Price | — |
| 18 Feb 2020 | Ooki | $650,000 | DeFi Protocol | Spot Price Manipulation | — |
| 15 Feb 2020 | Ooki | $350,000 | DeFi Protocol | Spot Price Manipulation | — |
| 12 Feb 2020 | Trinity Wallet | $2.0m | Wallet | CDN Compromise | — |
| 05 Feb 2020 | Altsbit | $70,000 | CEX | Key Leaked via Infrastructure | — |
| 03 Feb 2020 | LuckLambo104 | $1,500 | DeFi Protocol | Protocol Logic | — |
| 23 Jan 2020 | Bitcoin Gold | $70,000 | Layer 1 | Validator Key Compromised | — |
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, “Crypto failures in 2020”, data to 2 November 2026, https://bitminer.io/ledger/failures/2020/. How this is built