Fusion by IPOR hacked
The IPOR USDC Fusion Optimizer on Arbitrum experienced a smart contract vulnerability allowing arbitrary external calls, resulting in a loss of approximately $336,000 USDC from an older vault version. The IPOR DAO will cover the deficit, and the funds were later recovered through a white-hat security event with a bounty agreement.
- Estimated loss
- $336,000
- Protocols
- IPOR, Fusion
- Chains
- Arbitrum, Ethereum
- Confidence
- High
- First seen
- 6 Jan 2026, 00:00 UTC