A malware infection at Nippon Columbia, a contractor for Japanese entertainment company Daiichi Kosho, has exposed personal information for more than 8.7 million customers and 93,000 employees. Daiichi Kosho operates 521 karaoke venues across Japan, including the popular Big Echo chain, and outsources customer data management to Nippon Columbia Group. The record company discovered malware on an employee’s computer on October 5 and isolated the system the following day. The affected data includes full names, genders, dates of birth, email addresses, and telephone numbers for customers of multiple karaoke chains including Big Echo, Mega Big, Karaoke Club Dam, and others.
The company states it has not confirmed any actual data theft or leaks but is advising customers to remain cautious about potential risks. Daiichi Kosho notes that passwords and loyalty point information were not exposed in the incident. The company emphasized that its own systems were not breached, while Nippon Columbia Group is investigating the incident’s cause and scope and has reset authentication credentials.
Source: Read the full story at BleepingComputer
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