HSE

HSE

Data Breach on December 10, 2023
Data Breach Report
Victimhse.si
Claimed ByRhysida
Date DiscoveredDec 10, 2023
DescriptionThe HSE Group is the largest Slovenian organisation in the field of electricity and the largest producer and trader in electricity on the wholesale market in Slovenia.
Leak SizeUnknown

Credential Exposure for hse.si

We've indexed 55 @hse.si accounts from external breaches, plus 64 credentials for hse.si itself.

Last checked Sep 20, 2026

@hse.si addresses from external breaches
Third-party breaches36 accounts · across 28 breaches · 33 with a plaintext password · most recent Apr 22, 2024
Combo lists30 accounts · most recent Sep 12, 2026
Passwords for hse.si accounts
Combo lists62 logins · most recent Sep 16, 2026
Infostealer logs12 logins · 7 infected devices · most recent Sep 4, 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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