Bookoff Group Holdings Limited

9278.T
Specialty Retail
2026/10/08 12:11 Updated
Market Cap: $297.8M (¥47.0B)
Stock Price: $16.96 (¥2,680)
Exchange Rate: 1 USD = ¥157.98

Apology and Notice Regarding Personal Information Leak Due to Unauthorized Access

It was found that unauthorized access to a subsidiary's member information management system may have resulted in the leakage of up to approximately 6,430,000 member records. Credit card information is not affected. Additional investigations and recurrence prevention measures are currently underway.

Importance:
Page Updated: October 9, 2026
IR Disclosure Date: October 9, 2026

Key Figures

  • Number of member records potentially leaked: Up to approx. 6,430,000 shares
  • Types of information potentially leaked: Full name, date of birth, gender, email address, phone number, postal code and address, hashed password values, point card number, membership number
  • Payment information: Not included

AI要約

Overview of the Incident and Current Status

Bookoff Group Holdings Limited announced that it confirmed unauthorized access by a third party to a membership management system provided by a subsidiary and that acquisition of member information was identified. Although up to approximately 6,430,000 member records may be affected, no public information or payment information leakage has been confirmed at this time, and the data includes hashed passwords. The company is currently investigating the cause, monitoring, implementing recurrence prevention measures, and reporting to the Personal Information Protection Commission.

Response Policy and Future Outlook

The company has blocked the unauthorized access, corrected vulnerabilities, and disconnected external access, and has conducted an urgent comprehensive inspection of all systems. Additional security measures and permanent recurrence prevention measures will be implemented, and investigation results will be communicated to affected customers sequentially. The company will promptly disclose any new facts as they become known.

This page uses AI to summarize IR materials from TDnet. Please refer to the original document for investment decisions.

Bookoff Group Holdings Limited

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