SHINDO4

Tohoku Regional Development Bureau

Ministry of Land, Infrastructure, Transport and Tourism

Landowners65,488people

EXPOSEDFull nameMisconfiguration · Contained

Open in the live monitor ▶
Disclosed
Jul 7, 2025
Detected
Nov 1, 2024
Detection to disclosure
248 days
Leak
Exposed, access unknown
Type
Misconfiguration
Status
Contained
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityFull name

How many

  • Landowners 65,488 people

Who is affected

  • Landowners

Cause

When preparing data for publication, personal data was not removed from drawings supplied by 13 road offices in the bureau's area

Timeline

  1. Exposure began
  2. Detected
  3. Publication of affected drawings stopped
  4. Date of the Security NEXT report

Response

  • Service stopped

What you should do

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

Lessons for companies

  1. Two-person review and pre-release tests for sharing and cache changes; monitor cloud config (CSPM)
  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