Potential leakage of personal information associated with unauthorized access at Studio株式会社
The reporting company (Link-Uグループ株式会社) and the corporate websites of its consolidated subsidiaries
The corporate websites of the Company and its consolidated subsidiaries, the inquiry form and inquiry page on the Company's corporate website, and the external service “Studio”
Unauthorized access by a third party to the cloud environment of Studio株式会社
Company response
The inquiry page on the Company's corporate website was taken offline
The establishment of a third-party committee, special investigation committee or appointment of external experts was Not disclosed. Confirmation with Studio株式会社 and identification of the scope of the impact are in progress.
We will continue confirming the situation with Studio株式会社, identifying the scope of the impact on personal information and taking any necessary measures. If any additional matters requiring disclosure are identified, we will notify you promptly.
| Item | Details |
|---|---|
| Event name | Potential leakage of personal information associated with unauthorized access at Studio株式会社 |
| Date of occurrence | The date of the unauthorized access was Not disclosed. The date on which the Company was contacted by Studio株式会社 was 16 October 2026. |
| Date recognized / date notice received | 16 October 2026 |
| Subject Entity | The reporting company (Link-Uグループ株式会社) and the corporate websites of its consolidated subsidiaries |
| Target Locations / Products | The corporate websites of the Company and its consolidated subsidiaries, the inquiry form and inquiry page on the Company's corporate website, and the external service “Studio” |
| Cause | Unauthorized access by a third party to the cloud environment of Studio株式会社 |
| Suspended operations | The inquiry page on the Company's corporate website was taken offline |
| Investigation structure | The establishment of a third-party committee, special investigation committee or appointment of external experts was Not disclosed. Confirmation with Studio株式会社 and identification of the scope of the impact are in progress. |
| Outlook | We will continue confirming the situation with Studio株式会社, identifying the scope of the impact on personal information and taking any necessary measures. If any additional matters requiring disclosure are identified, we will notify you promptly. |
| Planned follow-up disclosure | If any additional matters requiring disclosure are identified, we will notify you promptly. |
Items this document does not state (15)
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.Because unauthorized access by a third party occurred in the cloud environment of Studio株式会社, and we were contacted by the company.