SHINDO2

CSM Inc.

Unauthorized accessSize not disclosed

LEAK UNCLEARInvestigating

Open in the live monitor ▶
Disclosed
Jul 24, 2026
Leak
Unknown
Type
Unauthorized access
Status
Investigating
Security spend
Measures, no amount
Compensation
Not announced

Cause

Unauthorized third-party access to the company's network. Cybersecurity-jp.com reported it as unauthorized access to a FortiGate device

Timeline

  1. First disclosure
  2. Second report (PDF dated July 28)

Response

  • Forensic investigation

Forensic investigation of PCs and servers. Detailed investigation of the main server continues, with interim results expected the week of August 10 and a final report at the end of August

What you should do

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

Lessons for companies

  1. Patch internet-facing servers, VPNs and admin panels first. Exploits follow disclosure within days
  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