panese telecommunications giant NTT Communications Corporation (NTT Com) has disclosed a data breach affecting information from nearly 18,000 corporate clients. The breach was identified on February 5, 2025, when suspicious activity was detected in the company’s internal Order Information Distribution System. Immediate measures were taken to restrict access to the compromised system. However, on February 15, further unauthorized access was discovered on another device, which was subsequently isolated.
The compromised data includes contract numbers, customer names, contact persons’ names, telephone numbers, email addresses, physical addresses, and details related to service usage. Notably, information pertaining to individual customers was not affected, as the breach involved only corporate clients.
NTT Com has stated that, as of now, there is no evidence of the stolen information being misused. The company is in the process of notifying all affected customers and has committed to enhancing its security measures and monitoring systems to prevent future incidents.
