A security incident occurred on the SEI chain. On January 9, attackers exploited a vulnerability in the Synnax contract to launch a flash loan attack, borrowing 1.96 million WSEI tokens at once without repayment. The trigger point for this attack is quite interesting — three blocks prior, an address (0x9748…a714) accidentally transferred funds to the contract due to a misoperation, inadvertently providing the attacker with a "tool."

From the on-chain transactions, this attack involved coordination between two critical transactions (TX1 and TX2), with relatively simple methods. However, this incident reveals an easily overlooked DeFi risk — on-chain misoperations can sometimes become a breakthrough point for attacks. Users should double-check addresses before transfers, and exchanges and project teams should strengthen smart contract security audits to prevent low-level mistakes from becoming major vulnerabilities.