SHINDO2

Nihon Kotsu Co., Ltd.

Malware infectionSize not disclosed

POSSIBLE LEAKRecovering

Open in the live monitor ▶
Disclosed
Jul 13, 2026
Detected
Jul 11, 2026
Detection to disclosure
2 days
Leak
Leak possible
Type
Malware infection
Status
Recovering
Security spend
Measures, no amount
Compensation
Not announced

What leaked

UnspecifiedInformation that may have come from the company

Cause

Malware infection following unauthorized access from outside

Timeline

  1. Detected
  2. Hire-car web ordering and booking, phone taxi dispatch and some internal systems stopped
  3. First disclosure
  4. Maternity taxi web registration form suspended
  5. Listed on ransomware.live as an Ailock post
  6. Third report
  7. Fourth report

Response

  • Blocked the entry point
  • Forensic investigation
  • Service stopped

Systems isolated; scope and cause investigated with outside help. Customers directed to the GO app for taxi bookings

What you should do

  1. Check the company's notice to see if you're affected

Lessons for companies

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

Sources