QQ account includes QQ wallet, which requires high real-name authentication. Any QQ number with real name (bound with ID number) is not allowed to change the real name user. In other words, no matter how you set or modify your QQ number, you can't change the original real-name registration system users. Identity cards have legal effect all over the country. As long as the other party wants to do it, you can always get this account back with your ID card. So, don't use anything involving money or personal privacy in this account. Otherwise there will be endless trouble.