StockDuty ← Dashboard Nov 13, 2026 12:48 AM ET
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Muji operator fails to delete unnecessary credit card data

High-priority alert based on source significance and keyword relevance.

What happened: Ryohin Keikaku, operator of Muji, said its failure to delete unnecessary customer credit card data was a factor in a breach involving up to 1.09 million credit card records through unauthorized access. Key numbers: Up to 1.09 million credit card records affected; up to around Why it matters: President Satoshi Shimizu said there were shortcomings in data management and the company must feel a deep sense of responsibility. The online store has been suspended since Friday as a security measure, and the company is still investigating whether the data retention was intentional.
Ryohin Keikaku, operator of Muji, said its failure to delete unnecessary customer credit card data was a factor in a breach involving up to 1.09 million credit card records through unauthorized access.
President Satoshi Shimizu said there were shortcomings in data management and the company must feel a deep sense of responsibility. The online store has been suspended since Friday as a security measure, and the company is still investigating whether the data retention was intentional.
Sources