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Grad Jastrebarsko Ransomware Attack

jastrebarsko.hrRansomed

threeamGroup

CroatiaCountry

Jun 12, 2026Discovered

Overview

View group profile

Domain

jastrebarsko.hr

Industry

Government & Defense

Country

Croatia

Discovered

3 months ago

Attack date

Jun 12, 2026

Confidence

85%

Severity

Medium

Status

Claimed

Threat group

threeam

Total victims

First seen

Nov 2025

Last seen

Aug 2026

Group status

active

Sophistication

Impact score

Threat level

2.7/10

Aggressiveness4.8/10

Lethality0/10

Criticality3.5/10

Status breakdown

Claimed

this victim

100.0%19

Targeted sectors

Education Energy & Utilities Government & Defense Healthcare Hospitality Manufacturing Other Professional Services Technology Transportation

Victim's position within group

Industry

Government & Defense

Known target sector

Country

Croatia

Frequently targeted country

Other victims

View all (19)

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Group activity

Monthly attacks · threeam

total · avg 3.8/mo