Ryohin Keikaku Co., Ltd.
Notice Regarding Possible Information Leak
Ryohin Keikaku disclosed new facts and response measures regarding a possible information leak affecting the MUJI app and MUJI online store. Up to approximately 27,260,000 email addresses and other data may be involved; a portion of credit card information may also be affected. Impact is currently considered limited; effects on financial results remain undetermined and investigation is ongoing.
Key Figures
- Up to approximately 27,260,000 shares: Information that may have been leaked
- Approximately 520,000 shares: May include names, addresses and telephone numbers
- Approximately 120 shares: Credit card information (first 6 digits + last 2 digits, cardholder name) potentially viewable
AI要約
Summary and Key Points of the Incident
Following the November 30, 2026 announcement regarding a possible customer information leak in the MUJI app, further investigation revealed that MUJI online store users may also be affected. The potentially impacted information includes email addresses, dates of birth, gender, member IDs, etc., potentially affecting up to approximately 27,260,000 items. In addition, about 520,000 items that may include names, addresses and telephone numbers could be involved. Some credit card information for MUJI Card issued by Credit Saison may also be within the scope. No fraudulent use has been confirmed at this time, and investigation to determine the cause and scope of impact is ongoing.
Impact and Future Measures
The Company states that it currently expects the impact on business performance to be limited and that there is no direct effect on store operations or online store business activities. Affected individuals will be contacted individually, and the Company will coordinate with card issuers to strengthen prevention measures and monitoring. MUJI Card holders who wish to have their cards reissued should contact Credit Saison. The Company will promptly disclose any new information as it becomes available.
Ryohin Keikaku Co., Ltd.
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