Frost Bank
bd_5f4aac65b3dc3f39 · schema v1 · pii pii-v1
Full breach record for Frost Bank →Frost Bank based in San Antonio, Texas, a financial services entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-04-22 and reported on 2026-05-20. 191,848 Texas residents were affected. 200,271 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Financial Information (e.g. account number, credit or debit card number);Date of Birth. Consumers were notified via U.S. Mail.
J jump to incidentP pin to compareR raw source
Incident timeline
Dec 6, 2025
Begins
Apr 22, 2026
Discovered
May 20, 2026
Filed
vs. sector median
4 wks faster
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Siteeverestbd_5a86e8b29efb82bf2026-04-20 · +30dVerified
Regulatory filings (4) · sorted by filing gap
- Massachusetts State AGbd_8b776d1a699a96f92026-05-20Verified
- Vermont State AGbd_9bc98c2af470155e2026-05-20Verified
- California State AGbd_b213ce708cd456a52026-05-20Verified
- Montana State AGbd_57500bb26b4174d52026-05-19 · +1dCandidate
Filing propagation · 5 filings · 5 states
View merged incident ↗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.