On May 15, 2024, Sonne Finance on Optimism was exploited for $20M through a donation attack. Market setup was split into separate timelock transactions, allowing the attacker to control execution order and manipulate collateral factors in a newly-created market before protective guards were applied.

Based on Compound's Optimism native lending protocol, Sonne Finance has fallen victim to a lightning loan attack by hackers, resulting in losses exceeding $20 million USD.