Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

T-Mobile

Disclosed Aug 29, 20252 affectedConfirmed

Official notice

What is known

People affected2 (as reported by the organization)
DisclosedAug 29, 2025
HappenedJun 10, 2025
AttackNot stated
Data exposedNot stated
SectorTelecom · US
StatusConfirmed

Sources

Official noticein.gov
Indiana Attorney General 2025 data breach report: T-Mobile

Notices filed

Residents of INAug 29, 2025
Indiana AG1 person

Other breaches at T-Mobile

Abused API leaks account data of 37 million T-Mobile customersHacking exposed names, addresses, emails, phone numbers and dates of birth. Reported to the Indiana AG.Hacking37M affectedTelecomUSJan 19, 2023Cyberattack steals data of tens of millions of T-Mobile customers and applicantsHacking exposed names, government IDs, source code, internal documents, dates of birth, Social Security numbers and phone numbers. Reported to the Delaware DOJ.Hacking54M affectedTelecomUSOct 9, 2020Breach, details not statedExposed names, Social Security numbers, government IDs, addresses and names. Reported to the Maine AG.TelecomUSDec 31, 2013
History of this record
Added2026-09-25
First recordedby backfillSource

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

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