SHINDO2

The Japan Times

RansomwareSize not disclosed

POSSIBLE LEAKInvestigating

Open in the live monitor ▶
Disclosed
Oct 2, 2026
Leak
Leak possible
Type
Ransomware
Status
Investigating
Security spend
Not checked yet
Compensation
Not announced
Corporate number
4010401014420

What leaked

UnspecifiedPossible data leak (items under investigation)

Cause

Unauthorized access to some servers managed by a group company (ransomware attack). The cause is being investigated with an outside specialist firm

Timeline

  1. First disclosure

Response

  • Forensic investigation
  • Phishing warning

Investigating, with an outside specialist firm, whether data leaked, the scope and the cause. Warning about suspicious emails and calls pretending to be the company or its group companies

What you should do

  1. 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