SHINDO3

Kyushu University

Personal data43people

POSSIBLE LEAKHealth / medical / treatment / Full nameRansomware · Investigating

Open in the live monitor ▶
Disclosed
Jun 10, 2026
Leak
Leak possible
Type
Ransomware
Status
Investigating
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityFull name
Special-care dataSurgery video data

How many

  • Kyushu University Hospital patients 43 people

Who is affected

  • Kyushu University Hospital patients

Cause

A research-lab computer managed by a campus research facility was infected with ransomware

Timeline

  1. Ransomware infection
  2. Announced

Response

  • Blocked the entry point
  • Notified individuals
  • Forensic investigation

Disconnected from the network as soon as it was detected and worked with the police. Contacting patients individually and investigating the cause and scope

What you should do

  1. Health data can't be taken back. Don't answer blackmail; call the police (#9110) or the consumer hotline (188)
  2. Check the company's notice to see if you're affected

Lessons for companies

  1. Offline backups with restore drills; segment the network
  2. Report to the PPC: preliminary in 3–5 days, final in 30 (60 if malicious)
  3. Run red teaming and AI-assisted hardening, and publish how much you invest

Sources