TransUnion
bd_b4d8a6f47a0b6abc · schema v1 · pii pii-v1
Full breach record for TransUnion →11 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
No interval is drawn: no breach start or discovery date is on record for this filing.
Linked disclosures
Why this link?Regulatory filings (10) · sorted by filing gap
- California State AGbd_217b0e65bf1e48972025-08-27 · +1dVerified by operator
- Vermont State AGbd_82d4818cdee39c862025-09-01 · +6dVerified by operator
- Oregon State AGbd_5b59f10c6f6c553f2025-09-02 · +7dVerified
- Iowa State AGbd_fd85f6604075cd912025-09-02 · +7dVerified by operator
Show 6 more filings ↓Show fewer ↑up to 13d gap
- Montana State AGbd_9bac2141a674997f2025-09-03 · +8dVerified by operator
- New Hampshire State AGbd_331561e568edbb3f2025-09-04 · +9dVerified by operator
- Texas State AGbd_83b605646965217d2025-09-04 · +9dVerified by operator
- South Carolina State AGbd_d7d141dc595dd1b02025-09-04 · +9dVerified by operator
- Massachusetts State AGbd_d87eb450bda408862025-09-04 · +9dVerified by operator
- Nebraska State AGbd_aaa181287c2471442025-09-08 · +13dVerified by operator
Showing first 10 of 14 linked disclosures.
Filing propagation · 11 filings · 11 states
View merged incident ↗Pattern: first filing Aug 26 (DE), last Sep 8 (NE) — a 13-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Cascade drawn from the first 10 linked disclosures of 14 — the full spread may be wider.
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.