Skip to content

T-Mobile USA

Disclosed Jan 19, 20233 years agoConfirmed

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

Source
Washington Attorney General breach notice: T-Mobile USAatg.wa.gov · Official notice

Notices filed

WhereFiledPeople
Washington AGresidents of WAJan 19, 2023772,593

Other breaches at T-Mobile USA

BreachAffected
Disclosed Aug 24, 2021Aug 24, 20215 years agoHackingUnknown
Disclosed Mar 10, 2020Mar 10, 20206 years ago1,027
Disclosed Oct 1, 2015Oct 1, 201510 years agoUnknown
History of this record
  • 2026-09-25 · added · backfill source

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

Everything about T-Mobile USA

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.