He just wants to see if you have any Q coins. Without Q coins, he immediately went to steal other numbers. Like my QQ, it was often stolen before, and a hacker even changed my signature to: "I don't have half a QQ coin, for nothing." You'd better not remember the password on your computer. In short, change your password frequently. You can set up the second-generation secret security, but it is of little use and can be cracked by ordinary thieves. If the number is stolen, complain.