HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)Financial accountLowContained

TransUnion

bd_5ff096c83f24f861 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Aug 4, 2022

To disclose

—

Affected

Not disclosed

Linked

9 filings

Confidence

65%

Full breach record for TransUnion →13 incidents on file

TransUnion LLC notified the California Attorney General of an incident where unauthorized actors used personal information obtained from non-TransUnion sources to impersonate consumers and attempt to access TransUnion products. The incident occurred between August 4, 2021, and January 31, 2022. TransUnion's systems were not compromised. Affected data may include names and credit file information. TransUnion offered one year of complimentary identity theft protection and credit monitoring.

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Incident timeline

Aug 4, 2021

Begins

Aug 4, 2022

Filed

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Montana State AGbd_6778f937b838f9302022-08-04Verified
Montana State AGbd_7d4333b71dc4758a2022-08-04Verified
Maine State AGbd_8600c700afac9a542022-08-04Verified
Montana State AGbd_8eae63057a496eaa2022-08-04Verified

Show 4 more filings ↓up to 1d gap

Massachusetts State AGbd_b8d496b8aa9f8b692022-08-04Verified
Indiana State AGbd_ea49382b930a48b32022-08-04Verified
Montana State AGbd_1ca0244698b0451e2022-08-05 · +1dVerified by operator
Montana State AGbd_82a944d4ca5bf8b92022-08-05 · +1dVerified

Name: TransUnion
norm: transunion
Domain: transunion.com

Name: TransUnion
norm: transunion
Domain: transunion.com
Industry: Financial Servicesllm

Discovered: —
Breach occurred: Aug 4, 2021 – Jan 31, 2022
Materiality determined: —
Notification sent: Aug 1, 2022
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Engaged in a dual-track effort to implement technical measures to block access to our services to potential unauthorized actors
Identify and notify individuals whose personal information we believe was accessed by unauthorized actors
Offering complimentary identity theft protection and credit monitoring services for a period of one year
Changes made: Continue to enhance our security controls as appropriate to minimize the risk of any similar incident in the future
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 5 states

View merged incident ↗

Montana State AGAug 4 · first

Maine State AGAug 4 · first

Montana State AGAug 4 · first

Massachusetts State AGAug 4 · first

Indiana State AGAug 4 · first

California State AGAug 4 · first · this page

Montana State AG+1d

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.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-555950
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 4, 2022
Raw hash: 431b66c72d0a8bfdb1d02bd88c060e95083b3fa3d494e0f0447104ca0a2252f5

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityTransUnion

Victim entityTransUnion

IncidentUnknown

Stated responseEngaged in a dual-track effort to implement technical measures to block access to our services to potential unauthorized actors

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov