If you know your email password and how to Reset AT&T Password to my AT&T using your full AT&T email address and password. From My Profile, locate the Set private Password section and: Enter the Current Password. Enter and confirm the New Password. If you feel that your email has hacked, you should immediately initiate process to protect your account. Some of these methods would be altering your current password, logging out of your AT&T email from all your procedure and look for any doubtful logins from the account settings.