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Latest / California / October 2015

T-Mobile USA, Inc.

T-Mobile USA, Inc. notified California AG on Oct 1, 2015 of a data breach, which occurred on Sep 14, 2015. Data exposed: Social Security number, Passport number, Financial / bank account, Date of birth, Military ID, Postal address, Name.

Organization
T-Mobile USA, Inc.
Source
California AG · source record
Date reported
Oct 1, 2015
Date(s) of breach
Monday, September 14, 2015
Residents affected
Not published by this source
Data exposed
Social Security number Passport number Financial / bank account Date of birth Military ID Postal address Name
Notice letter
Sample notice (PDF)
First seen by BreachTally
2026-10-30 16:22 UTC

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

Other filings by T-Mobile USA, Inc.

OrganizationSourceStateReportedResidents affectedData exposed
T-Mobile USA California AG CA Aug 25, 2021 Not published Social Security numberFinancial / bank accountUsernames / passwordsPhone number+1
First seen by BreachTally at 16:22 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the data types and the letter. Start a 14-day free trial.

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