DisclosureLens
UnknownLow

T-MOBILE USA, INC.

bd_d88603b347c10755 · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Mar 31, 2021

To disclose

—

Affected · nationwide

651 in this filing

Linked

2 filings

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 2021-02-20 and was reported on 2021-03-31. 1 Indiana residents were affected. 65 individuals affected in total.

Incident timeline

Feb 20, 2021

Begins

Mar 31, 2021

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings · 2 states

View merged incident ↗
Massachusetts State AGMar 31 · first
Indiana State AGMar 31 · first · this page

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.