Nikkei is a leading Japanese business news and financial information group. It owns Financial Times, the nation’s biggest business-focused media company. The organization has over 10,100 employees and boasts of an annual revenue of $2.5 billion.

Nikkei revealed a new data breach affecting over 1.8 million records. On October 7, the cyberattackers utilized previously stolen credentials to access the cloud service.

Around 1.83 million records were stolen. However, only 1.68 million had only data than cannot be utilized to identify an individual as per the company. Of the other records 150,000 had names, addresses, email addresses, phone numbers and dates of birth. Around 120,000 had email addresses. The company informed that no credit card data was stolen in the incident.

Nikkei stated “We deeply apologize for any inconvenience and concern this may have caused to those involved. We will inform you individually if the leakage of personal information is confirmed.”

Nikkei has revoked the compromised credentials. The company has notified Japan’s Personal Information Protection Commission on October 11. The media giant stated that it was currently probing the scope of the breach. Till October 16, there are no signs that the accessed data was misused or leaked online.

SOURCES:-

https://www.securityweek.com/hackers-steal-1-8-million-records-from-nikkei/

https://securityaffairs.com/201369/data-breach/nikkei-data-breach-affected-over-1-8-million-records.html

https://www.bleepingcomputer.com/news/security/nikkei-discloses-third-data-breach-in-a-month-18m-records-exposed/

https://www.show.it/hackers-steal-1-8-million-records-from-nikkei/

https://threatintel.cc/2026/10/20/nikkei-discloses-third-data-breach.html

https://mezha.net/eng/news/mezha-b2284eab9ad8465506ea5a8b_nikkei_says_breach/