MUJI Postpones Reopening of Online Store Due to Potential New Data Leaks From "Credential Stuffing Attacks" - WWDJAPAN - Latest Fashion & Beauty News

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Ryohin Keikaku (Bunkyo-ku, Tokyo), which operates the lifestyle brand "MUJI," announced on November 9, 2026, that there is a possibility that unauthorized logins have occurred on the "MUJI Online Store" through numerous login attempts by a third party (credential stuffing attacks). It has also come to light that approximately 440,000 users of cash-on-delivery services may have had their email addresses compromised. Regarding MUJI, on October 30,…

SEVENTIE TWO

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After a sharp decline, 83 stocks rose; JINS HD topped the gains with a 12.84% increase; MUJI Online Store postpones reopening | SVT Index: 14,275 points (November 9)

FASHIONSNAP.COM [ファッションスナップ・ドットコム]

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Ryohin Keikaku has announced the 4th report on the possibility of customer information leakage from Muji Ryohin's official application “MUJI App” and internet stores. The reopening of the “Muji Ryohin Net Store,” which has been suspended since 16:00 on 11/6, has been postponed, and a policy to take further security measures has been clarified. This content is distributed by FASHIONSNAP.

WWD JAPAN.com

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Ryohin Keikaku announced on November 9th that it would postpone the reopening of its "MUJI Online Store," which had been temporarily suspended since November 6th. The company stated that it had suffered a "credential stuffing attack," in which a third party attempted to log in using passwords potentially obtained illegally from an external source, and that access to the store could be compromised for anyone other than the customer themselves. [……