This record tracks a ransomware attack claimed by the
threeam group against
jastrebarsko.hr. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
-13days
t1 · Published
t2 · Disclosed
Business Category
Public Sector
Disclosed / Notified
Apr 17, 2026
Attack Summary
Town of Jastrebarsko, a historic city in Central Croatia located between Zagreb and Karlovac.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for jastrebarsko.hr
— indexed by HaveIBeenRansom.
1
found in Infostealer logs
9
found in Traditional breaches
0
found in Ransomware leaks
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
CitizenGo & HatzeOir databases
ddosecret · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Расшифровка Badoo.com [25,8kk].rar
Misha-z88 DB · breach
••• emails
ShareThis_BF.7z
TheUnderground - Reborn · breach
••• emails
CompilationOfManyBreaches.7z.001
Database World Cloud · breach
••• emails
Leak volumes are locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.