The historical passwords of 1 and QQ are only recorded in Tencent system and are not open to users. Only when the user forgets the password can he appeal, and the administrator compares the password to determine whether the complainant is the owner of QQ number as a verification certificate.

2. If it is your own QQ, you will remember some passwords you have used more or less. Even if you can remember one of them, it can be used as a reference for your complaint to get the password back.

Good luck getting your password back.