ReportedUpdated 3 Nov 2026
AT&T data breach
Data breach1 source
What happened
In 2024, AT&T lost sensitive communication logs of 109 million customers in a massive data breach.
Reported impact
An affected population has not been established in the accepted evidence.
Reported data types
phone numbersphone numbers
Source evidence
1Read the original reporting and statements. Multiple articles may rely on the same underlying source.
109 million people (nearly a third of Americans) suffered a [massive data breach](https://www.bleepingcomputer.com/news/security/massive-atandt-data-breach-exposes-call-logs-of-109-million-customers/) in April 2024 that exposed their AT&T communication logs.
Attributed reporting
1 more excerpt
phone numbers, call and text counts, call durations, and location data
Attributed reporting
Updates and corrections
- Revision 1
Incident updated.