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

According to reports from Wu, Yu Xian, the founder of Slow Fog, 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 converted the funds into ETH, they laundered it through FixedFloat. The longer the mnemonic phrases/private keys are used and the wider they are distributed, the higher the risk of leakage and the more difficult it is to investigate the cause.