Grupo Santillana

Grupo Santillana

Data Breach on March 26, 2025
Data Breach Report
Victimsantillana.com
Threat ActorHellcat
Date DiscoveredMar 26, 2025
Description​Grupo Santillana is a leading educational company specializing in providing innovative solutions aimed at the continuous improvement of educational processes.
Leak SizeUnknown

Credential Exposure for santillana.com

We've indexed 826 @santillana.com accounts from external breaches, plus 1,105 credentials for santillana.com itself.

Last checked Aug 16, 2026

@santillana.com addresses from external breaches
Combo lists560 accounts · most recent Aug 15, 2026
Third-party breaches298 accounts · across 80 breaches · 242 with a plaintext password · most recent Dec 18, 2025
Passwords for santillana.com accounts
Combo lists907 logins · most recent Aug 15, 2026
Infostealer logs369 logins · 312 infected devices · most recent Aug 8, 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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