Apology and Notice Regarding Unauthorized Access to Our Business Servers and the Potential Leakage of Personal Information and Other Data
株式会社アンドエスティHD
Multiple company servers. The web store “アンドエスティ” was not affected by this unauthorized access, but members are currently unable to use their loyalty points at stores or on the web store.
Unauthorized external access led to successive login attempts, unauthorized access to multiple servers, and data extraction.
Current fiscal year (the specific fiscal year and quarter are Not disclosed)
The impact of this incident on financial results for the current fiscal year is currently being investigated. We will promptly announce any material impact on future financial results if one is expected.
Related procedures
Consultation with the police and a report to the Personal Information Protection Commission
Police and the Personal Information Protection Commission
Company response
Internal business systems were suspended. Use of member loyalty points at stores and on the web store was suspended.
Necessary emergency measures, including isolating servers and blocking unauthorized access routes. Identification of the means used for the unauthorized access and implementation of countermeasures.
We will begin contacting affected customers and business partners sequentially and establish an inquiry contact point for this incident. If a material impact on financial results is expected, we will promptly disclose it.
We will promptly announce any material impact on future financial results if one is expected.
| Item | Details |
|---|---|
| Event name | Apology and Notice Regarding Unauthorized Access to Our Business Servers and the Potential Leakage of Personal Information and Other Data |
| Date of occurrence | Around 7:30 a.m. on Thursday, 22 October 2026 |
| Date recognized / date notice received | Around 10:00 a.m. on 22 October 2026 |
| Subject Entity | 株式会社アンドエスティHD |
| Target Locations / Products | Multiple company servers. The web store “アンドエスティ” was not affected by this unauthorized access, but members are currently unable to use their loyalty points at stores or on the web store. |
| Cause | Unauthorized external access led to successive login attempts, unauthorized access to multiple servers, and data extraction. |
| Accounting period in which recognized | Current fiscal year (the specific fiscal year and quarter are Not disclosed) |
| Impact on Earnings Forecast | The impact of this incident on financial results for the current fiscal year is currently being investigated. We will promptly announce any material impact on future financial results if one is expected. |
| Type of litigation or proceeding | Consultation with the police and a report to the Personal Information Protection Commission |
| Court or authority | Police and the Personal Information Protection Commission |
| Suspended operations | Internal business systems were suspended. Use of member loyalty points at stores and on the web store was suspended. |
| Measures to prevent recurrence | Necessary emergency measures, including isolating servers and blocking unauthorized access routes. Identification of the means used for the unauthorized access and implementation of countermeasures. |
| Outlook | We will begin contacting affected customers and business partners sequentially and establish an inquiry contact point for this incident. If a material impact on financial results is expected, we will promptly disclose it. |
| Planned follow-up disclosure | We will promptly announce any material impact on future financial results if one is expected. |
Items this document does not state (11)
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.A third party externally attempted to log in to and gain access to multiple company servers and extracted data.