SHINDO2

Komae City

Registered voters69,244people

POSSIBLE LEAKPostal address / Date of birthLoss · Investigating

Open in the live monitor ▶
Disclosed
Feb 16, 2026
Detected
Feb 10, 2026 17:30 JST
Detection to disclosure
6 days
Leak
Leak possible
Type
Loss
Status
Investigating
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityName, Date of birth, Gender
ContactAddress

How many

  • Registered voters 69,244 people
  • SD memory cards 5 files

Who is affected

  • Registered voters

Cause

SD cards used in polling-station voter-check terminals went missing

Timeline

  1. Used in voter-check terminals at 14 polling stations on election day
  2. Detected
  3. First disclosure

What you should do

  1. Watch for unexpected mail or invoices; your address is hard to change
  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