Jozef Stefan Institute

Jozef Stefan Institute

Data breach claim reported May 12, 2026
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Data Breach Report
Victimijs.si
Claimed ByCoinbaseCartel
Date DiscoveredMay 12, 2026
DescriptionJožef Stefan Institute is a scientific research institute based in Slovenia that conducts research in physics, chemistry, computer science, and advanced technology development.
Leak SizeUnknown

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

Credential Exposure for ijs.si

We've indexed 636 @ijs.si accounts from external breaches, plus 71 credentials for ijs.si itself.

Last checked Nov 8, 2026

@ijs.si addresses from external breaches
Third-party breaches615 accounts · across 204 breaches · 526 with a plaintext password · most recent Feb 26, 2026
Combo lists268 accounts · most recent Nov 8, 2026
Phishing pages1 accounts · most recent Aug 4, 2026
Passwords for ijs.si accounts
Combo lists66 logins · most recent Nov 8, 2026
Infostealer logs13 logins · 10 infected devices · most recent Nov 5, 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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