Home › All Victims › Frost Bank

Frost Bank

everest

This record tracks a ransomware attack claimed by the everest group against Frost Bank. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

135days open
t1 · Published t2 · Pending
Apr 20, 2026Not disclosed yet
Country
United States
Business Category
Finance / Legal / Insurance
Employees
+1000
Discovered
2026-04-20
Published
April 20, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
vOVGYVxM1ZPI

Attack Summary

[AI generated] Frost Bank is a Texas-based financial institution and a subsidiary of Cullen/Frost Bankers, Inc. Founded in 1868 and headquartered in San Antonio, it operates across major Texas cities offering personal and commercial banking, wealth management, insurance, and investment services. As one of the largest independent banks in Texas, it serves individuals, businesses, and institutions within the United States financial services industry.

Leak Screenshots

SAMPLE

This is what a leak gallery looks like. Sign in to see the screenshots our collector has actually taken of this listing.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
Sign in or explore HaveIBeenRansom to view the full leak gallery.
View leak gallery →

Dark Web Exposure

Findings for frostbank.com — indexed by HaveIBeenRansom.
437
found in Infostealer logs
2,676+
found in Traditional breaches
324+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
shinyhunters · breach
••• emails
clop · ransomware
••• emails
play · ransomware
••• emails
+ 17 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 sources.
Sign in Unlock with Enterprise →
Want the complete picture — passwords, machines, full leak files? It's all searchable on HaveIBeenRansom.
Search this victim →
Visit Website Original Post View Group: everest

Related entries

Rise UP VIVOTEK Italtel Peru CCA Bank Kingston Technology Experts Entreprendre
Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house only records what the operators themselves publish in the open. We take screenshots of their public pages and keep the proof material they post there, so that a listing can be verified and its status tracked over time. We do not purchase data, we do not solicit or encourage its publication, we do not access any private system, and we do not alter anything we record. Nothing is offered for download here, and detailed content is not published on this page or anywhere else on the public site: access to it is restricted to vetted customers under contract, for incident response, due diligence and cyber-resilience work. Breach.house is not affiliated with, and does not act on behalf of, the operators who publish this material. If you represent an organisation or individual named here and want a record reviewed or removed, contact us and we will act on it.