Beosin: Sonne attacker borrowed VELO through flash loans and created new contracts to conduct multiple attacks

According to Beosin Alert monitoring and early warning, the Sonne Finance protocol on the Optimism chain was attacked by hackers through flash loans. The attackers attacked multiple times, causing a total loss of about 20 million US dollars. The Beosin security team analyzed and found that the attacker borrowed VELO Token through flash loans and sent it to the soVELO contract through transfer. New contracts were created many times, and various tokens of the Sonne Finance protocol were borrowed and redeemed in the new contracts. VELO Token tokens were repeatedly operated, and all funds were stolen. At present, the attackers mainly save funds in the following addresses: 0x02FA2625825917E9b1F8346a465dE1bBC150C5B9, 0x5D0D99e9886581ff8fCB01F35804317f5eD80BBb, 0xae4A7cDe7C99fb98B0D5fA414aa40F0300531F43. Beosin Trace will continue to monitor the movement of the stolen funds.