HackingStolen CredentialsCustomer Data InvolvedCREDENTIALSIDENTITY_BASICLowContained
T-MOBILE US, INC.
bd_abc7db8579ef1ba6 · schema v1 · pii pii-v1
Full breach record for T-MOBILE US, INC. →T-Mobile US, Inc. notified the New Hampshire Attorney General that a bad actor gained unauthorized access to limited information from a small number of T-Mobile accounts between late February and March 2023. One New Hampshire resident was affected. The compromised data included account PINs. T-Mobile reset the PINs, shut down access, and provided two years of free credit monitoring.
Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/t-mobile-usa-20230428.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Apr 28, 2023
- Raw hash
- 90eb9750e5f219e65a780ea68180aeb07ddf9edfcef0bc6555f643ef62bcd232
Reporting entity
- Name
- T-MOBILE US, INC.norm: t mobile us
Victim entity
- Name
- T-MOBILE US, INC.norm: t mobile us
Incident
- Discovered
- Mar 1, 2023
- Materiality determined
- —
- Notification sent
- Apr 28, 2023
- Affected individuals
- 1
- Data types
- CREDENTIALSIDENTITY_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid Accounts
- Threat actor
- ExternalFinancial
- Regulator citations
- Provided notice to the Consumer Protection and Antitrust Bureau, Office of the Attorney General of New Hampshire
- Initial access
- valid_credentials
Compliance
- Time to disclose
- 8 weeks(58 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.