TransUnion
bd_b4d8a6f47a0b6abc · schema v1 · pii pii-v1
Full breach record for TransUnion →13 incidents on fileTransUnion, LLC disclosed a cyber incident involving unauthorized access to personal data stored on a third-party application used for U.S. consumer support operations. The incident did not involve credit reports or core credit information. TransUnion provided 24 months of complimentary credit monitoring and fraud assistance via Cyberscout. The notification was filed with the Delaware Attorney General.
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Incident timeline — partial
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Breach window unknown
Aug 26, 2025
Filed
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Linked disclosures
Why this link?Regulatory filings (8) · sorted by filing gap
- Indiana State AGbd_085cfd43425228862025-08-26Verified
- Wisconsin State AGbd_b187955d41edb1322025-08-26Verified
- California State AGbd_217b0e65bf1e48972025-08-27 · +1dVerified
- Maine State AGbd_9d7ad1a3ef9bd9ae2025-08-27 · +1dVerified
Show 4 more filings ↓Show fewer ↑up to 13d gap
- Vermont State AGbd_82d4818cdee39c862025-09-01 · +6dVerified by operator
- Iowa State AGbd_fd85f6604075cd912025-09-02 · +7dVerified by operator
- Montana State AGbd_9bac2141a674997f2025-09-03 · +8dVerified by operator
- Nebraska State AGbd_aaa181287c2471442025-09-08 · +13dVerified by operator
Filing propagation · 9 filings · 9 states
View merged incident ↗Pattern: first filing Aug 26 (IN), last Sep 8 (NE) — a 13-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.