Update (March 30, 2024):

AT&T has confirmed the breach and reset PIN codes of customers affected. According to AT&T "The information varied by customer and account, but may have included full name, email address, mailing address, phone number, social security number, date of birth, AT&T account number and passcode."

The Massive Leak Exposes Personal Information of Over 70 Million Customers

The personal data of more than 70 million individuals linked to AT&T has been leaked on a notorious cybercrime forum.