Washington International School

Washington International School

Data Breach on February 11, 2026
Data Breach Report
Victimwis.edu
Claimed ByLeakNet
Date DiscoveredFeb 11, 2026
DescriptionWashington International School is a private international school based in the USA (Washington, D.C.), focused on providing a bilingual, inquiry‑based K‑12 education.
Leak SizeUnknown

Credential Exposure for wis.edu

We've indexed 1,253 @wis.edu accounts from external breaches, plus 7 credentials for wis.edu itself.

Last checked Oct 4, 2026

@wis.edu addresses from external breaches
Third-party breaches1,203 accounts · across 175 breaches · 881 with a plaintext password · most recent Jan 25, 2026
Combo lists384 accounts · most recent Sep 30, 2026
Passwords for wis.edu accounts
Combo lists5 logins · most recent Sep 13, 2026
Infostealer logs4 logins · 2 infected devices · most recent Jul 12, 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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