SHINDO5

The Awa Bank

Customer records666records

LEAK CONFIRMEDBank account / Full nameInsider misuse · Closed (final report)

Open in the live monitor ▶
Disclosed
Jan 8, 2026
Detected
Nov 21, 2025
Detection to disclosure
48 days
Leak
Leak confirmed
Type
Insider misuse
Status
Closed (final report)
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityName
Financial & paymentAccount number

How many

  • Customer records 666 records

Who is affected

  • Customers

Cause

An Aizumi branch employee took customer data without authorization and embezzled 87,410 yen

Timeline

  1. Misconduct began
  2. Misconduct ended
  3. Detected
  4. Reported to the police
  5. Reported to the supervisory authority
  6. First disclosure

Response

  • Staff training
  • Governance / committee

The employee was dismissed; staff training enforced and compliance and information-management systems strengthened. The embezzled money was repaid in full

What you should do

  1. Scammers who know your account number pose as refund staff. No bank or company asks for your PIN
  2. Check the company's notice to see if you're affected

Lessons for companies

  1. Don't keep ID or bank data: delete after checks or use a KYC provider
  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