AT&T — 49.1M accounts
Severity: High · Kind: Data breach
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From the source
In March 2024, tens of millions of records allegedly breached from AT&T were posted to a popular hacking forum . Dating back to August 2021, the data was originally posted for sale before later being freely released. At the time, AT&T maintained that there had not been a breach of their systems and that the data originated from elsewhere. 12 days later, AT&T acknowledged that data fields specific to them were in the breach and that it was not yet known whether the breach occurred at their end or that of a vendor . AT&T also proceeded to reset customer account passcodes , an indicator that there was sufficient belief passcodes had been compromised. The incident exposed names, email and physical addresses, dates of birth, phone numbers and US social security numbers.
Breach facts
- Accounts affected
- 49,102,176
- Verified
- Yes
- Sensitive
- No
- Data exposed
- Dates of birthEmail addressesGovernment issued IDsNamesPhone numbersPhysical addresses
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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.