Columbia University
bd_a0e855fe568fe7c6 · schema v1 · pii pii-v1
Full breach record for Columbia University →7 incidents on fileColumbia University based in New York, New York, a educational institution entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-07-08 and reported on 2026-05-20. 161,544 Texas residents were affected. 3,067,242 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Health Insurance Information;Other;Date of Birth. Consumers were notified via U.S. Mail.
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Incident timeline
May 16, 2025
Begins
Jul 8, 2025
Discovered
May 20, 2026
Filed
Linked disclosures
Why this link?Regulatory filings (1) · sorted by filing gap
- New Hampshire State AGbd_0c96ffec9a2ab1172026-05-07 · +13dCandidate
Filing propagation · 2 filings · 2 states
View merged incident ↗Pattern: first filing May 7 (NH), last May 20 (TX) — 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.