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Incidents involving:

AT&T

Data breachResolved

AT&T data breach (2021)

A dataset dating to August 2021 — names, addresses, phone numbers, and encrypted SSNs and dates of birth — resurfaced in March 2024 and was leaked for free, with AT&T eventually confirming ~73 million current and former customers were affected.

Victim
AT&T
Records
73.0M