KOSMOS

KOSMOS

Data Breach on July 06, 2026
Data Breach Report
Victimkosmos.de
Threat ActorTheGentlemen
Date DiscoveredJul 06, 2026
DescriptionKOSMOS is a renowned publishing and media company based in Germany, specializing in educational products, board games, and books.
Leak SizeUnknown

Credential Exposure for kosmos.de

We've indexed 70 @kosmos.de accounts from external breaches, plus 23 credentials for kosmos.de itself.

Last checked Aug 16, 2026

@kosmos.de addresses from external breaches
Third-party breaches61 accounts · across 44 breaches · 47 with a plaintext password · most recent Jul 24, 2024
Combo lists25 accounts · most recent Aug 6, 2026
Passwords for kosmos.de accounts
Infostealer logs13 logins · 11 infected devices · most recent Nov 12, 2025
Combo lists11 logins · most recent Aug 6, 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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