MUJI Operator Apologizes for Leak of 1.09 Million Members' Data, Admits Management Oversight
IT Home, November 12: According to Kyodo News, Ryohin Keikaku, the company that operates MUJI, held a press conference in Tokyo on the 12th regarding the unauthorized access incident. President 清水智 apologized, saying: "We sincerely apologize for the enormous concern and trouble this has caused everyone."

清水智 admitted that there were lapses in information management, saying that some systems had vulnerabilities that failed to prevent unauthorized access.
It is reported that information on approximately 1.09 million records, including full credit card numbers and including those of members who have already canceled, may have been leaked. Credit card information that should have been discarded was still being retained, and 清水智 said, "We will move forward with establishing a mechanism under which we do not hold unnecessary information." For credit cards whose information may have been leaked, he stated that the company will bear the fees for reissuing new cards.
As IT Home previously reported, those affected are members of the "MUJI Card" co-branded credit card who joined by July 2021. The card is issued by Credit Saison Co., Ltd., with approximately 1.09 million cards in total, of which about 345,000 are currently still valid.
On November 6, MUJI released a statement saying that after verification, the information of MUJI China consumers was confirmed to be safe and unrelated to this incident in Japan.
- "Japan's MUJI leaks 1.09 million members' data, including 'MUJI Card' credit card numbers"
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