User's four sets of mnemonic phrases leaked leading to fund theft

According to reports from Wu, Yuxian, the founder of Slow Mist, stated that a user's four sets of mnemonic phrases were leaked, leading to the theft of funds from four wallet addresses. After the hacker exchanged the funds for ETH, they laundered it through FixedFloat. The longer the mnemonic phrases/private keys are used and the more widely they are distributed, the higher the risk of leakage and the more difficult it is to investigate the cause.