SHINDO2
AGS Corporation
RansomwareSize not disclosed
POSSIBLE LEAKInvestigating
Open in the live monitor ▶- Disclosed
- Apr 17, 2026
- Leak
- Leak possible
- Type
- Ransomware
- Status
- Investigating
- Security spend
- Not checked yet
- Compensation
- Not announced
What leaked
UnspecifiedData from outsourced work (contents and count not disclosed)
Who is affected
- Customers possibly affected
Cause
A company doing subcontracted work was hit by ransomware
Timeline
- First disclosure
Response
- Notified individuals
- Vendor review
Notified possibly affected customers individually; reviewing and strengthening control of subcontracted work
What you should do
- Check the company's notice to see if you're affected
Lessons for companies
- Put security requirements, audit rights and reporting deadlines in vendor contracts
- Offline backups with restore drills; segment the network
- Report to the PPC: preliminary in 3–5 days, final in 30 (60 if malicious)
- Run red teaming and AI-assisted hardening, and publish how much you invest
Sources
- Cybersecurity-jp.com News · Apr 28, 2026