HAK Grazbachgasse

HAK Grazbachgasse

Data Breach on February 13, 2023
Data Breach Report
Victimhak-graz.at
Threat ActorBianLian
Date DiscoveredFeb 13, 2023
DescriptionThe commercial academy HAK Grazbachgasse is a higher vocational school with a business focus.
Leak Size331GB

Credential Exposure for hak-graz.at

We've indexed 528 @hak-graz.at accounts from external breaches, plus 15 credentials for hak-graz.at itself.

Last checked Aug 23, 2026

@hak-graz.at addresses from external breaches
Third-party breaches403 accounts · across 66 breaches · 355 with a plaintext password · most recent Oct 6, 2024
Combo lists354 accounts · most recent Aug 21, 2026
Passwords for hak-graz.at accounts
Combo lists14 logins · most recent Aug 17, 2026
Infostealer logs4 logins · 2 infected devices · most recent Aug 3, 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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