SHINDO1

Ibiden Co., Ltd.

Unauthorized accessSize not disclosed

LEAK UNCLEARInvestigating

Open in the live monitor ▶
Disclosed
Apr 13, 2026
Detected
Apr 13, 2026
Detection to disclosure
Same day
Leak
Unknown
Type
Unauthorized access
Status
Investigating
Security spend
Not checked yet
Compensation
Not announced

Not leaked

  • No personal data leak or other harm has been confirmed

Who is affected

  • Website visitors

Cause

A website fault caused rogue pages unrelated to the company to be displayed; intrusion route under investigation

Timeline

  1. Anomaly detected; server shut down and access stopped
  2. Service suspended
  3. First report

Response

  • Service stopped
  • Forensic investigation

Emergency server shutdown and access block; identifying the outside intrusion route and strengthening security

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