St Thomas More Catholic High School
Data Breach on August 11, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | stmcougars.net | ||
| Threat Actor | Qilin | ||
| Date Discovered | Aug 11, 2025 | ||
| Description | St. Thomas More Catholic High School is a private Roman Catholic co-educational secondary school based in the USA, offering accredited academics, spiritual formation, and extracurricular programs. | ||
| Leak Size | Unknown |
Credential Exposure for stmcougars.net
We've indexed 2,407 @stmcougars.net accounts from external breaches, plus 7 credentials for stmcougars.net itself.
Last checked Aug 16, 2026
| @stmcougars.net addresses from external breaches | |
|---|---|
| Third-party breaches | 2,370 accounts · across 174 breaches · 1,779 with a plaintext password · most recent Jun 9, 2026 |
| Combo lists | 765 accounts · most recent Aug 7, 2026 |
| Passwords for stmcougars.net accounts | |
|---|---|
| Combo lists | 5 logins · most recent Jun 22, 2026 |
| Infostealer logs | 2 logins · 2 infected devices · most recent Aug 2, 2026 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
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