Incident All ledgers
BtcTurk: $48.0m
BtcTurk lost $48.0m on 14 August 2025. Ranked 75th of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 14 August 2025
- Lost
- $48.0m
- Returned or repaid
- None recorded
- Target
- CEX
- Category
- Key Compromise
- Method
- Hot Wallet Key Compromised
- Chains
- Ethereum, Avalanche, Arbitrum, Base, Optimism, Mantle, Polygon
Turkish exchange BtcTurk was hacked for the second time in August 2025, losing about $48M from hot wallets on seven blockchains after its private keys were compromised.
Against the ledger
- It ranks 75th of the 1,272 incidents with a known loss, and 9th in 2025.
- It accounts for 73.2% of the $65.6m in known losses in August 2025.
- 153 incidents in the ledger are classified as Key Compromise, for $8.96bn in total. This one is 0.5% of that.
- The ledger records no returned funds.
Other incidents named BtcTurk
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 22 Jun 2024 | BtcTurk | $54.0m | CEX | Hot Wallet Key Compromised | — |
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 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 | — |
| 19 Jul 2025 | CoinDCX | $44.2m | CEX | Hot Wallet Key Compromised | — |
| 20 Sept 2024 | BingX | $43.3m | CEX | Hot Wallet Key Compromised | — |
All failures in 2025 · 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, “BtcTurk, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/btcturk-2025-08-14/. How this is built