Breaches and incidentsBriefReported by a reputable outlet, citing the company

Daiichi Kosho (via contractor Nippon Columbia Group): malware on a contractor PC exposes 8.7 million karaoke customer and employee records

Daiichi Kosho said Nippon Columbia Group (NCG), the contractor handling its customer data, found malware on an employee’s computer on 5 Oct 2026.

Disclosed

What happened

  • Daiichi Kosho said Nippon Columbia Group (NCG), the contractor handling its customer data, found malware on an employee’s computer on 5 Oct 2026; 8,631,000 customer and 93,000 employee records (names, gender, birth dates, emails, phone numbers; no passwords) were on the affected system. No confirmed leak.
  • Root cause: malware on a contractor employee’s PC with access to customer data.
  • No attacker named.
  • NCG isolated the system and reset credentials.

Sources

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