CESI

CESI

Data Breach on February 12, 2025
Data Breach Report
Victimcesi.fr
Claimed ByTermite
Date DiscoveredFeb 12, 2025
DescriptionCESI is a private French higher education and vocational training group specialising in training engineers, managers, technicians and supervisors.
Leak SizeUnknown

Credential Exposure for cesi.fr

We've indexed 564 @cesi.fr accounts from external breaches, plus 1,276 credentials for cesi.fr itself.

Last checked Oct 11, 2026

@cesi.fr addresses from external breaches
Third-party breaches470 accounts · across 105 breaches · 403 with a plaintext password · most recent Jan 6, 2026
Combo lists302 accounts · most recent Oct 10, 2026
Passwords for cesi.fr accounts
Combo lists754 logins · most recent Oct 10, 2026
Infostealer logs621 logins · 384 infected devices · most recent Oct 10, 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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