SHINDO3

Furusato Shimane Teiju Foundation

Applicants1,238people

LEAK CONFIRMEDPostal address / Phone numberSoftware defect · Closed (final report)

Open in the live monitor ▶
Disclosed
Jan 7, 2026
Detected
Dec 19, 2025
Detection to disclosure
19 days
Leak
Leak confirmed
Type
Software defect
Status
Closed (final report)
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityName
ContactAddress, Phone number, Email address

How many

  • Applicants 1,238 people
  • Misdirected emails 3,661 records

Who is affected

  • Applicants to the Shimane 1-Day Job Experience and the Shimane job-hunting support grant

Cause

A defect in a November 2024 change to cross-reference two databases: when staff were logged into both systems in the same browser and entered company data, the foundation's contacts were registered wrongly

Timeline

  1. After a system change in November 2024
  2. Found through an inquiry from one of the companies
  3. Security NEXT report date

Response

  • Config review
  • Notified individuals

Disabled the faulty setting and plans a fundamental system overhaul; notified applicants by email and letter

What you should do

  1. Don't open links in emails from this company. The apology email itself may be fake
  2. Treat refund or apology calls and texts as scams. Call back only on the number from the official site
  3. Watch for unexpected mail or invoices; your address is hard to change
  4. Check the company's notice to see if you're affected

Lessons for companies

  1. Never sit on a known defect. Test every change before production
  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