Japanese karaoke maker Daiichi Kosho reports data breach affecting 8.7 million records

What happened

Japanese entertainment system maker Daiichi Kosho has disclosed a significant data breach (an incident in which data leaves an organisation without permission) originating from its contractor, Nippon Columbia, potentially exposing over 8.7 million customer and employee records. The incident occurred when Nippon Columbia discovered malware (software written to damage a system or steal from it) on an employee's computer on Oct.

Daiichi Kosho, known for its Big Echo karaoke chain, has stated that its own systems were not breached. While the company isolated the affected system the next day, the breach may have compromised sensitive data including full names, genders, dates of birth, email addresses, and telephone numbers.

The exposed data does not include passwords or evidence of unauthorized loyalty point usage. Customers of various Daiichi Kosho brands, including BIG ECHO, are advised to be cautious of unsolicited communications.

Nippon Columbia is investigating the cause and scope of the incident, including the possibility of data leaks online. No public announcement has been made by Nippon Columbia regarding the security incident.