Heinrich KUPER

Heinrich KUPER

Data breach claim reported May 11, 2026
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Data Breach Report
Victimkuper.de
Claimed ByTheGentlemen
Date DiscoveredMay 11, 2026
DescriptionHeinrich KUPER is an international machine manufacturer and process consulting company based in Germany, specializing in veneer processing, solid wood manufacturing, and advanced packaging solutions.
Leak SizeUnknown

Breach claims on this page are published by threat actors and haven't been verified by Breachsense.

Credential Exposure for kuper.de

We've indexed 38 @kuper.de accounts from external breaches, plus 4 credentials for kuper.de itself.

Last checked Nov 1, 2026

@kuper.de addresses from external breaches
Combo lists24 accounts · most recent Oct 30, 2026
Third-party breaches22 accounts · across 23 breaches · 16 with a plaintext password · most recent Feb 8, 2021
Passwords for kuper.de accounts
Combo lists4 logins · most recent Oct 26, 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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