My 26-year-old att.net account is broken, and AT&T can't fix it. AT&T's system says my 26-year-old DavidH***@att.net already exists, but I can't access it. I wanted to replace it with a Verizon ...

Mail keys are unique credentials that AT&T email users can use to log into their accounts using email apps such as Thunderbird or Outlook, but without having to use their passwords.

A script on AT&T's servers was designed to return an iPad 3G user's e-mail address when presented with a unique ICC-ID—a serial number embedded in the microSIM that identifies a particular iPad ...