Aztec investigating $2.16M exploit from discontinued service

Ethereum Layer 2 project Aztec is investigating a $2.165 million exploit that occurred on a payment service discontinued in 2022, Unfolded reported. The attacker reportedly exploited a circuit validation vulnerability to steal 1,158 ETH, 150,000 DAI, and 0.47 renBTC. Aztec explained that the affected service was an immutable rollup structure and that the team does not hold administrative privileges over it. The project added that this incident is unrelated to the current Aztec network, its total value locked (TVL), or the AZTEC token. This is the second security issue to surface recently, following a separate $2.1 million fund outflow from an Aztec Connect contract four days ago.