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Latest / California / April 2024

AT&T Inc.

AT&T Inc. notified California AG on Apr 9, 2024 of a data breach. Data exposed: Social Security number, Financial / bank account, Health insurance, Date of birth, Usernames / passwords, Email address, Phone number, Postal address, Name.

All 5 filings by AT&T Inc., state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
AT&T Inc.
Source
California AG · source record
Date reported
Apr 9, 2024
Date(s) of breach
n/a
Residents affected
Not published by this source
Data exposed
Social Security number Financial / bank account Health insurance Date of birth Usernames / passwords Email address Phone number Postal address Name
Notice letter
Sample notice (PDF)
Discovered
Mar 26, 2024, as stated in the letter
"On March 26, 2024, we determined that AT&T customer information was included in a dataset released on the dark web on March 17, 2024."
Days to notice
14 days from discovery (Mar 26, 2024) to the California record (Apr 9, 2024). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Offered in the letter
12 months of credit or identity monitoring through Experian
First seen by BreachTally
2026-10-30 15:41 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 15:41 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by AT&T Inc.

OrganizationSourceStateReportedResidents affectedData exposed
AT&T Inc. Oregon DOJ OR Apr 10, 2024 51,226,382 Not stated
AT&T Wisconsin DATCP WI Mar 30, 2024 7 Social Security numberFinancial / bank accountDate of birthEmail address+3
AT&T California AG CA Apr 23, 2015 Not published Social Security numberFinancial / bank accountHealth insuranceDate of birth+5
AT&T, Inc. Delaware DOJ DE n/a 50,469 Social Security numberFinancial / bank accountHealth insuranceDate of birth+5

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.