Security Incident · ETH Ecosystem
Lien Finance Smart Contract Vulnerability: $542.00K Reported Loss
On July 24, 2026, Lien Finance (an Ethereum DeFi structured products protocol) was exploited.
- Reported loss
- $ 542,000
- Attack category
- Smart Contract Vulnerability
Incident Overview
The attacker abused a validation flaw in the exchangeEquivalentBonds function of the BondMakerCollateralizedEth contract (missing multiset integrity checks), minting unbacked bond tokens and draining approximately $542K USDC via OTC pools.
Sources & References
This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.