Science & Tech · Cybersecurity · 9 hrs ago
Potential breach may expose data of 8.7 million karaoke customers in Japan
Daiichi Kosho, a major Japanese karaoke operator whose brands include Big Echo, says customer data may have been exposed in a breach at supplier Nippon Columbia Group.
The supplier found malware on an employee’s computer on October 1 or 2, 2026, and isolated the device on October 2.
About 8.7 million people who registered or made reservations at Daiichi Kosho businesses may be affected.
The information could include names, gender, birth dates, email addresses and telephone numbers.
The company says it cannot rule out that the data was leaked, but the supplier is still investigating whether it was compromised.
The supplier has reset affected passwords, and Daiichi Kosho has opened a toll-free number for concerned customers.
The company advises people to watch for suspicious emails, texts and calls, and not to open unfamiliar links or attachments.
Daiichi Kosho said a malware incident at supplier Nippon Columbia Group may have exposed personal information linked to about 8,724,000 customers.
The potentially affected customers registered or made reservations at Daiichi Kosho stores.
The information may include names, gender, dates of birth, email addresses and telephone numbers.
NCG said it reset affected passwords and is investigating whether data was compromised.
Daiichi Kosho warned customers to watch for suspicious emails, text messages and phone calls.
- Who
- Daiichi Kosho customers who registered or made reservations at its stores may be affected.
- What
- A malware incident at supplier Nippon Columbia Group may have exposed personal information.
- When
- The malware infection was discovered between October 1 and October 2, 2026.
- Where
- The incident occurred on an employee’s PC at Nippon Columbia Group in Japan.
- Why
- Not stated
This story does not have two clearly opposing sides.
Personal data related to work outsourced to us was temporarily stored on the device in question, and we cannot rule out the possibility that this data may have been leaked.
Please be extremely careful of suspicious emails, SMS messages and phone calls, and do not open any links or attachments that you do not recognize.
NCG discovered a malware infection on an employee’s PC.
NCG isolated the affected device from its network.
Daiichi Kosho received a report from NCG after it investigated the incident’s scope.
Daiichi Kosho published a statement about the incident and potential exposure.
- Potentially affected customers
- Approximately 8,724,000
- Potential data
- Names, gender, dates of birth, email addresses and telephone numbers
- Big Echo customers
- 5.6 million
- DK Dining customers
- 3.5 million
- Affected supplier
- Nippon Columbia Group (NCG)
Sources
Related news
Cyberattack defrosts refrigerators at French supermarket chains
Ledger confirms tampered wallets linked to CryptoBilis fund thefts
Malware incident at contractor may expose 8.7 million karaoke records
Critical SonicWall flaw faces exploitation days after patch
Cyberattack disrupts refrigeration systems at French supermarkets
Albert Heijn systems remain offline after cybersecurity incident
Attacks disrupt Yandex services and its data centers in Russia
Canadian cybersecurity executive arrested on federal extortion charges
Canadian cybersecurity executive arrested in FBI ShinyHunters investigation
Cyberattacks disrupt French supermarket freezers and Dutch-Belgian retail operations
Exposure management shifts cybersecurity focus from controls to risk
