DisclosureLens
MalwareEducationEducationRansomwareRansom DemandedData EncryptedDelayed DiscoveryAuthenticationEducationFinancial accountIdentity (basic)Government IDPHIMedium

University of St. Thomas - Houston

bd_aa6bab5dc73a3b93 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 12, 2025

Filed

May 26, 2026

To disclose

41 weeks

Affected

516state residents only

Linked

9 filings

Confidence

95%
Full breach record for University of St. Thomas - Houston

University of St. Thomas-Houston, a education sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2025-08-12 and filed notice on 2026-05-26. 516 Washington residents were affected. 287 days elapsed between awareness and notification. 18 days to identify the breach. 224 days to contain the breach.

Washington clock WA AG >90d41 weeks discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 41 weeks / 287 days

Aug 12, 2025

Discovered

May 26, 2026

Filed

vs. sector median

+34 wks slower

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

Show 4 more filingsup to 78d gap

Filing propagation · 9 filings · 8 states

View merged incident ↗

Pattern: first filing Mar 9 (TX), last May 28 (TX) — a 80-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.