Shiraume Hospital

Shiraume Hospital was compromised in a ransomware attack attributed to netrunner in April 2026. The organization, operating in the Healthcare sector in Japan, was added to the group's data leak site as part of an extortion campaign.

netrunner operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.