SHINDO3
Nexus Energy Co., Ltd.
RansomwareSize not disclosed
POSSIBLE LEAKPostal address / Date of birthClosed (final report)
Open in the live monitor ▶- Disclosed
- Mar 19, 2026
- Detected
- Apr 14, 2025
- Detection to disclosure
- 339 days
- Leak
- Leak possible
- Type
- Ransomware
- Status
- Closed (final report)
- Security spend
- Not checked yet
- Compensation
- Not announced
What leaked
IdentityName, Gender, Date of birth, Age
ContactAddress, Phone and mobile numbers, Email address
Device & networkVehicle registration number
Not leaked
- Credit card and My Number data were not stored on the server
Who is affected
- Gas station customers
Cause
Unauthorized third-party access infected a server with ransomware and encrypted data
Timeline
- Ransomware infection found
- First disclosure
Response
- Notified individuals
- New detection
- More monitoring
Notified customers by post and on its website; strengthened intrusion detection and monitoring and rebuilt its security infrastructure
What you should do
- Don't open links in emails from this company. The apology email itself may be fake
- Treat refund or apology calls and texts as scams. Call back only on the number from the official site
- Watch for unexpected mail or invoices; your address is hard to change
- Check the company's notice to see if you're affected
Lessons for companies
- 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 · Mar 27, 2026