Optimism — Security
30 DeFi exploits on Optimism — $405.0M stolen in total.
| Date | Project | Stolen | Type |
|---|---|---|---|
| 03 Nov 2025 | Balancer V2 | $128.0M | Token & Share Accounting |
| 23 Jan 2025 | Phemex | $85.0M | Key Compromise |
| 14 Aug 2025 | BtcTurk | $48.0M | Key Compromise |
| 22 Nov 2023 | KyberSwap Elastic | $48.0M | Token & Share Accounting |
| 10 Sep 2024 | Indodax | $25.2M | Frontend & Infrastructure |
| 15 May 2024 | Sonne Finance | $20.0M | Token & Share Accounting |
| 05 Jun 2022 | Wintermute | $17.6M | Access Control |
| 18 Aug 2023 | Exactly | $7.6M | Access Control |
| 15 Apr 2023 | Hundred Finance | $7.4M | Token & Share Accounting |
| 27 Mar 2023 | Kokomo Finance | $4.0M | Rugpull |
| 10 Feb 2023 | dForce Lending | $3.7M | Reentrancy |
| 10 Apr 2023 | SushiSwap | $3.3M | Input Validation |
| 30 Apr 2024 | Pike V1 | $1.6M | Access Control |
| 04 Nov 2025 | Moonwell Lending | $1.0M | Oracle Manipulation |
| 15 Mar 2024 | MOBOX | $750K | Protocol Logic |
| 21 Nov 2025 | Aerodrome V1 | $700K | Frontend & Infrastructure |
| 07 Apr 2026 | SquidMulticall | $517K | Access Control |
| 10 Jul 2023 | Arcadia V1 | $455K | Access Control |
| 01 Dec 2024 | Clipper | $450K | Protocol Logic |
| 30 Aug 2025 | Cozy V2 | $427K | Input Validation |
| 02 Jan 2025 | MoonHacker | $300K | Access Control |
| 29 Nov 2023 | Velodrome | $250K | Frontend & Infrastructure |
| 23 Oct 2022 | Layer2DAO | $190K | Social Engineering |
| 25 Jan 2024 | Nebula Revelation | $180K | Reentrancy |
| 07 Sep 2026 | Cozy V2 | $163K | Protocol Logic |
| 23 Apr 2024 | Magpie Protocol | $129K | Input Validation |
| 01 Jul 2022 | Quixotic | $100K | Input Validation |
| 07 Jun 2022 | Equalizer Exchange | $50K | Protocol Logic |
| 18 Nov 2022 | Polynomial | $7K | Input Validation |
| 01 Apr 2025 | Zapper | $0 | Frontend & Infrastructure |