SHINDO3

Nikujiru Gyoza no Dandadan

Insider misuseSize not disclosed

LEAK CONFIRMEDHR / labour recordsClosed (final report)

Open in the live monitor ▶
Disclosed
May 11, 2026
Leak
Leak confirmed
Type
Insider misuse
Status
Closed (final report)
Security spend
Not checked yet
Compensation
Not announced

What leaked

Employment & HRCV information

Who is affected

  • Part-time job applicants

Cause

Inappropriate social media posts by a franchise employee, due to poor awareness and weak management

Timeline

  1. First disclosure

Response

  • Data deleted
  • Notified individuals
  • Staff training

Posts deleted; applicants given an explanation and apology; SNS and data-handling training across all stores

What you should do

  1. Expect targeted phishing posing as HR or interview contacts
  2. 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