Additional Report on Unauthorized Access and Postponement of the MUJI Online Store Reopening
RYOHIN KEIKAKU CO.,LTD.
MUJI app, MUJI Online Store, MUJI stores, MUJI Card
An incident involving unauthorized logins to the Company's online store using IDs (email addresses) and passwords obtained from outside the Company
Company response
Temporary suspension of the MUJI Online Store and postponement of its reopening
A further announcement will be made once the reopening date has been determined.
Further comprehensive security measures and verification; password resets for all customers when the online store reopens; and verification of an environment that can be used with confidence through further enhancement of security measures
No amount has been disclosed. A certain impact is expected from the temporary suspension of the MUJI Online Store, but the impact is currently under review.
A certain impact is expected from the temporary suspension of the MUJI Online Store, but the impact is currently under review.
The Company will identify the cause and scope of the impact and implement the necessary security measures, and will promptly disclose any newly identified information requiring notification. Individual notifications to affected individuals will begin on 10 November 2026.
A further announcement will be made once the reopening date has been determined. Any newly identified information requiring notification will be promptly disclosed.
| Item | Details |
|---|---|
| Event name | Additional Report on Unauthorized Access and Postponement of the MUJI Online Store Reopening |
| Subject Entity | RYOHIN KEIKAKU CO.,LTD. |
| Target Locations / Products | MUJI app, MUJI Online Store, MUJI stores, MUJI Card |
| Cause | An incident involving unauthorized logins to the Company's online store using IDs (email addresses) and passwords obtained from outside the Company |
| Amount of Impact on Business Performance | No amount has been disclosed. A certain impact is expected from the temporary suspension of the MUJI Online Store, but the impact is currently under review. |
| Impact on Earnings Forecast | A certain impact is expected from the temporary suspension of the MUJI Online Store, but the impact is currently under review. |
| Suspended operations | Temporary suspension of the MUJI Online Store and postponement of its reopening |
| Scheduled resumption date | A further announcement will be made once the reopening date has been determined. |
| Measures to prevent recurrence | Further comprehensive security measures and verification; password resets for all customers when the online store reopens; and verification of an environment that can be used with confidence through further enhancement of security measures |
| Outlook | The Company will identify the cause and scope of the impact and implement the necessary security measures, and will promptly disclose any newly identified information requiring notification. Individual notifications to affected individuals will begin on 10 November 2026. |
| Planned follow-up disclosure | A further announcement will be made once the reopening date has been determined. Any newly identified information requiring notification will be promptly disclosed. |
Items this document does not state (14)
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.Unauthorized logins through credential stuffing were identified, and it was determined that further comprehensive security measures and verification were necessary.