AT&T Data Breach Exposes Personal Info of Up to 73 Million Customers

Data leak impacted 7.6 million current AT&T customers and 65.4 million former customers, based on AT&T's preliminary analysis
Leaked data included full names, email addresses, mailing addresses, phone numbers, Social Security numbers, dates of birth, AT&T account numbers, and passcodes
Data appeared on a public hacking forum on March 17, 2022, not just on the dark web
The leak includes 49 million unique email addresses according to security researcher Troy Hunt
AT&T says the data may have originated from AT&T systems or from an AT&T vendor, but is still assessing the source