Daiichi Kosho says contractor malware incident affected 8.7 million karaoke customer and employee records

Daiichi Kosho, a major Japanese karaoke operator, disclosed that a malware infection at contractor Nippon Columbia exposed more than 8.7 million customer and employee records. The data included names, genders, birth dates, email addresses, and phone numbers, and may affect customers of several karaoke and dining brands. Daiichi Kosho said it has not confirmed data theft or leaks, that passwords were not exposed, and that its own systems were not breached.

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Daiichi Kosho, a major Japanese karaoke operator with 521 venues, including the Big Echo chain, entrusts customer personal data handling to Nippon Columbia Group. Nippon Columbia alerted Daiichi Kosho on October 5 that malicious software had been found on a worker’s device and isolated the system the following day.

The affected records cover 93,000 employees and 8,631,000 customers and may involve users of BIG ECHO, MEGA BIG, Karaoke CLUB DAM