Slow Mist founder Cosine said that a user's four sets of mnemonic words were leaked, and the funds in the corresponding four wallet addresses were stolen. From the perspective of on-chain operation methods, after the hacker address receives the funds, they are all replaced by ETH and then washed away through FixedFloat. To remind everyone, the longer the mnemonic/private key is used on the Internet and distributed to more people for common use, the more likely it is to be leaked, and the more difficult it is to investigate the cause of the leak.