Truebit hit by $26m exploit attackers increasingly target older DeFi protocols

Truebit, an Ethereum-based verification protocol, lost about $26 million in an exploit that a hacker carried out by targeting a bug in the protocol's code. The attack tricked the protocol into giving away 8,535 Ether tokens at around 4pm London time on Thursday, and a second exploit shortly after stole just under $300,000 worth of its TRU token. The impacted smart contract was deployed in 2021, and there is no public record of a third-party audit. Weilin Li, a DeFi security researcher and PhD student at University College London, said the attack highlights a growing trend of hackers targeting older DeFi protocols.