SHINDO4

VisualArt's Co., Ltd.

Personal data~13,600records

POSSIBLE LEAKTrade secretsUnauthorized access · Investigating

Open in the live monitor ▶
Disclosed
Jun 4, 2026
Leak
Leak possible
Type
Unauthorized access
Status
Investigating
Security spend
Measures, no amount
Compensation
Not announced

What leaked

UnspecifiedPersonal data
Business dataInternal information (unreleased game title)

How many

  • Personal data and other records ~13,600 records

Who is affected

  • Customers and others (scope under investigation)

Cause

Unauthorized access (method under investigation)

Timeline

  1. Preliminary report to the PPC
  2. First report
  3. Final report to the PPC
  4. Report No. 2 published

Response

  • Forensic investigation
  • More monitoring
  • MFA
  • Governance / committee

Forensic investigation (planned from September), 24/7 monitoring (MDR), review of authentication, network hardening, stronger reporting to management

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