DisclosureLens
UnknownLow

T-MOBILE USA, INC.

bd_723037c46687222f · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Feb 9, 2021

To disclose

—

Affected · nationwide

4216 in this filing

Confidence

95%
Full breach record for T-MOBILE USA, INC. →22 incidents on file

T-Mobile reported a data breach to the Indiana Attorney General. The breach occurred on 2021-01-18 and was reported on 2021-02-09. 6 Indiana residents were affected. 421 individuals affected in total.

Incident timeline

Jan 18, 2021

Begins

Feb 9, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed421 affectedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.