Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

T-Mobile USA

Disclosed Jan 19, 2023Confirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedJan 19, 2023
DiscoveredJan 5, 2023
HappenedNov 25, 2022
AttackHacking
Data exposedNot stated
SectorTelecom · US
StatusConfirmed

Sources

Official noticeatg.wa.gov
Washington Attorney General breach notice: T-Mobile USA

Notices filed

Residents of WAJan 19, 2023
Washington AG772,593 people

Other breaches at T-Mobile USA

Hacking breachHacking, data exposed not stated. Reported to the California AG.TelecomUSAug 24, 2021Breach, details not statedBreach notice filed with the Indiana AG, details not stated.1,027 affectedTelecomUSMar 10, 2020Breach, details not statedExposed names, Social Security numbers, government IDs and payment cards. Reported to the California AG.TelecomUSOct 1, 2015
History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Washington AG), confirmed by Washington AG. Record counts are as reported. Not legal advice.

Everything about T-Mobile USA