Matej Bel University

Matej Bel University

Data breach claim reported June 26, 2023
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Data Breach Report
Victimumb.sk
Claimed ByMedusa
Date DiscoveredJun 26, 2023
DescriptionMatej Bel University (commonly referred as Matej Bel or UMB), (Slovak: Univerzita Mateja Bela) is a public research university in the central Slovak town of Banská Bystrica.
Leak SizeUnknown

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

Credential Exposure for umb.sk

We've indexed 952 @umb.sk accounts from external breaches, plus 1,047 credentials for umb.sk itself.

Last checked Nov 8, 2026

@umb.sk addresses from external breaches
Combo lists690 accounts · most recent Nov 8, 2026
Third-party breaches494 accounts · across 131 breaches · 437 with a plaintext password · most recent Oct 10, 2024
Passwords for umb.sk accounts
Combo lists890 logins · most recent Nov 8, 2026
Infostealer logs318 logins · 134 infected devices · most recent Nov 7, 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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