Chester County Library System
Data Breach on October 21, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | ccls.org | ||
| Threat Actor | Lynx | ||
| Date Discovered | Oct 21, 2025 | ||
| Description | Chester County Library System (CCLS) is a free public library system based in the USA, serving the residents of Chester County, Pennsylvania with educational, informational, and community‑library services. | ||
| Leak Size | Unknown |
Credential Exposure for ccls.org
We've indexed 161 @ccls.org accounts from external breaches, plus 53 credentials for ccls.org itself.
Last checked Aug 13, 2026
| @ccls.org addresses from external breaches | |
|---|---|
| Third-party breaches | 161 accounts · across 52 breaches · 147 with a plaintext password · most recent Aug 18, 2024 |
| Combo lists | 26 accounts · most recent Jul 22, 2026 |
| Passwords for ccls.org accounts | |
|---|---|
| Combo lists | 53 logins · most recent Aug 8, 2026 |
| Infostealer logs | 8 logins · 4 infected devices · most recent Jul 19, 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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