Ransomware needs a way in. Stolen credentials are the cheapest one.
Shiraume Hospital Ransomware Attack
Ransomware victimRansomed
Overview
View group profileIndustry
Healthcare
Country
Japan
Discovered
8 days ago
Confidence
90%
Severity
Medium
Status
Claimed
Threat group
netrunnerTotal victims
16
First seen
Apr 2026
Last seen
Oct 2026
Threat level
3/10Aggressiveness5.3/10
Lethality0/10
Criticality3.8/10
Status breakdown
Claimed
this victim
100.0%16Targeted sectors
Victim's position within group
Industry
Healthcare
Known target sector
Country
Japan
Not a listed target country
Other victims
View all (16)Same group · netrunner
Group activity
Monthly attacks · netrunner
16
total · avg 5.3/mo