SHINDO2

TEIN, Inc.

RansomwareSize not disclosed

LEAK UNCLEARRecovering

Open in the live monitor ▶
Disclosed
Oct 31, 2025
Detected
Oct 31, 2025
Detection to disclosure
Same day
Leak
Unknown
Type
Ransomware
Status
Recovering
Security spend
Not checked yet
Compensation
Not announced

Cause

Ransomware caused a system outage on head office servers

Timeline

  1. System outage on head office servers
  2. First disclosure
  3. China factory stopped for one week from November 3; head office factory stopped for one day
  4. Warlock claimed the attack
  5. Company issued an update

Response

  • Forensic investigation

Make-up production on weekends, individual contact with business partners, email sent and received only on terminals confirmed safe

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