Credit card numbers may have leaked in cyberattack on Japan's Muji

Source: The Straits Times
Published on: 2026-11-04 15:07

Bic Camera, Airdo, Solaseed Air and Workman also reported leaks linked to Arara's e-mail system. No credit card details were confirmed in those cases. TOKYO - Muji brand operator Ryohin Keikaku said on Nov 4 that about 1.09 million customer records, including credit card numbers, may have been leaked following unauthorised access to its system. About 345,000 of the potentially leaked Muji Card customer records contain full numbers of currently valid credit cards and dates of birth, the Japanese operator said. Late in October, the company also reported that up to 27.26 million customer records may have leaked following unauthorised access to its Muji App. Earlier on Nov 4, Nomura Investor Relations, a subsidiary of Nomura Holdings, said a system providing information services to institutional investors and analysts had been subject to unauthorised access, resulting in a data breach. ...

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