Leakage of Personal Information Due to Unauthorized Access to Part of Our Website
RESORTTRUST,INC. (website managed by us)
Website managed by us, our group members' information, reservation holders' information for The Kahala Hotel & Resort Yokohama
Unauthorized access by an external third party
Company response
No suspension (hotels nationwide and individual facilities continue to provide services as usual)
A detailed investigation is under way in cooperation with an external security specialist organization
Remediation of vulnerabilities in the affected systems, enhancement of monitoring capabilities, rigorous review of network access permissions, and company-wide rebuilding of the information security framework
Prompt disclosure if it becomes clear that this matter will have a material impact on future business results
We plan to apologize individually and provide updates, on a rolling basis, to customers confirmed to be affected by the information leakage. Based on the findings of the investigation by an external specialist organization, we will remediate vulnerabilities in the affected systems, enhance monitoring capabilities, and rigorously review network access permissions.
Individual notifications to affected parties will be provided on a rolling basis. If it becomes clear that this matter will have a material impact on future business results, we will disclose it promptly.
| Item | Details |
|---|---|
| Event name | Leakage of Personal Information Due to Unauthorized Access to Part of Our Website |
| Date of occurrence | 5 October 2026 (abnormal system activity on the website from approximately 20:30 to approximately 23:30) |
| Date recognized / date notice received | 6 October 2026 (abnormal activity identified); 7 October 2026 (leakage of information due to unauthorized access confirmed) |
| Subject Entity | RESORTTRUST,INC. (website managed by us) |
| Target Locations / Products | Website managed by us, our group members' information, reservation holders' information for The Kahala Hotel & Resort Yokohama |
| Cause | Unauthorized access by an external third party |
| Impact on Earnings Forecast | Prompt disclosure if it becomes clear that this matter will have a material impact on future business results |
| Suspended operations | No suspension (hotels nationwide and individual facilities continue to provide services as usual) |
| Investigation structure | A detailed investigation is under way in cooperation with an external security specialist organization |
| Measures to prevent recurrence | Remediation of vulnerabilities in the affected systems, enhancement of monitoring capabilities, rigorous review of network access permissions, and company-wide rebuilding of the information security framework |
| Outlook | We plan to apologize individually and provide updates, on a rolling basis, to customers confirmed to be affected by the information leakage. Based on the findings of the investigation by an external specialist organization, we will remediate vulnerabilities in the affected systems, enhance monitoring capabilities, and rigorously review network access permissions. |
| Planned follow-up disclosure | Individual notifications to affected parties will be provided on a rolling basis. If it becomes clear that this matter will have a material impact on future business results, we will disclose it promptly. |
Items this document does not state (13)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.An external third party gained unauthorized access to a website managed by us, causing some personal information stored on the server to be leaked externally.