According to Foresight News, Sonne Finance, a decentralized non-custodial liquidity market protocol on Optimism and Base, has been targeted by hackers. The attack has resulted in losses exceeding $20 million. It has been advised that the time-lock contracts of Sonne Finance should be carefully inspected.
In response to the attack, Sonne Finance has announced that all markets on Optimism have been temporarily halted. However, the markets on Base remain secure and operational. Further details about the attack and the measures being taken to address it have not been disclosed yet.