Four sets of mnemonic words were leaked, and funds corresponding to four wallet addresses were stolen. From the perspective of on chain operation methods, hackers are not very professional. After the hacker addresses receive the funds, they all exchange them for ETH and then launder them through FixeFloat. A reminder to everyone, the longer the mnemonic/private key is used online and distributed to more people for shared use, the more likely it is to be leaked, and the more difficult it is to investigate the cause of the leak