Incident All ledgers
CoinEx: $55.0m
CoinEx lost $55.0m on 12 September 2023. Ranked 67th of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 12 September 2023
- Lost
- $55.0m
- Returned or repaid
- None recorded
- Target
- CEX
- Category
- Key Compromise
- Method
- Hot Wallet Key Compromised
- Chains
- Ethereum, BSC, Bitcoin, Tron, Kadena, Solana, Dagger, XRP
In September 2023, attackers obtained CoinEx's hot wallet private keys and drained funds across Ethereum, Tron, Polygon and other chains. The record lists the loss at $55 million, with other estimates of $31-54 million.
Against the ledger
- It ranks 67th of the 1,272 incidents with a known loss, and 10th in 2023.
- It accounts for 17.1% of the $321.3m in known losses in September 2023.
- 153 incidents in the ledger are classified as Key Compromise, for $8.96bn in total. This one is 0.6% of that.
- The ledger records no returned funds.
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 26 Jul 2023 | AlphaPo | $60.0m | CEX | Hot Wallet Key Compromised | — |
| 14 Sept 2018 | Zaif | $60.0m | CEX | Hot Wallet Key Compromised | — |
| 22 Jun 2024 | BtcTurk | $54.0m | CEX | Hot Wallet Key Compromised | — |
| 24 Feb 2025 | Infini | $49.5m | DeFi Protocol | Private Key Compromised | — |
| 27 Nov 2019 | Upbit | $49.3m | CEX | Hot Wallet Key Compromised | — |
All failures in 2023 · The failures ledger
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, “CoinEx, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/coinex-2023-09-12/. How this is built