Joshin Corporation
Apology and Notice Regarding System Disruption Caused by Unauthorized Access (Second Report)
Announced a system disruption caused by unauthorized network access. Confirmed potential leakage of up to 6,000,000 customer records; subscription and remodeling-related data may also be affected. Investigation is ongoing; working to restore suspended services and prevent recurrence.
Key Figures
- Number of customer records potentially leaked: up to 6,000,000 records
- Number of possible subscription leaks: up to 230,000 records
- Number of possible leaks from remodeling photo upload system: up to 800 records
AI要約
Overview of the Incident
The Company announced a system disruption caused by unauthorized access on October 17, 2026, and disclosed the matter to the Tokyo Stock Exchange on October 19. We are currently coordinating with external specialist organizations to investigate the scope of impact and whether personal information was leaked. Payment information is not retained, and we do not hold credit card information. Customer data potentially affected include the membership information database, subscription data, and the remodeling photo upload system, with maximum scales of approximately 6,000,000 records, approximately 230,000 records, and approximately 800 records, respectively. We will continue to disclose additional information on our official website as it becomes available.
Future Response and Impact
We will prioritize preventing recurrence and the prompt restoration of suspended services, and will strengthen measures against vulnerabilities. We have established countermeasures and an inquiry desk to minimize customer impact, and will promptly disclose any new facts that should be made public. Inquiries will be handled by the Customer Consultation Desk.
Joshin Corporation
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