Decentralized finance protocol Lien Finance was attacked after an attacker used a smart contract vulnerability to mint unsecured bond tokens and steal about 542,144.63 USDC. According to Odaily, the attacker minted a new abnormal BondToken without destroying the corresponding input bond and then exchanged it for USDC through a preauthorized address.
The report said the incident stemmed from a verification flaw in the bond token redemption logic, which allowed the attacker to bypass asset collateral constraints and mint unsupported assets.
Lien Finance Attack Drains 542,144.63 USDC Through Smart Contract Flaw
2026-07-24 07:33:39
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