Community Unit School District 200

Community Unit School District 200

Data Breach on November 11, 2025
Data Breach Report
Victimcusd200.org
Threat ActorINC_RANSOM
Date DiscoveredNov 11, 2025
DescriptionCommunity Unit School District 200 is a public school district based in the USA (Illinois), providing K‑12 education to local communities.
Leak SizeUnknown

Credential Exposure for cusd200.org

We've indexed 5,418 @cusd200.org accounts from external breaches, plus 82 credentials for cusd200.org itself.

Last checked Aug 16, 2026

@cusd200.org addresses from external breaches
Third-party breaches5,303 accounts · across 206 breaches · 3,207 with a plaintext password · most recent Oct 5, 2025
Combo lists734 accounts · most recent Aug 15, 2026
Passwords for cusd200.org accounts
Combo lists79 logins · most recent Aug 7, 2026
Infostealer logs14 logins · 7 infected devices · most recent Jul 31, 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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