According to the news of the Kyodo agency, unauthorized access to the information sharing system developed by Fujitsu, which is responsible for controlling the computers in official institutions, was detected.
After the unauthorized entry, a data breach was detected for 76 thousand e-mail addresses, including government officials and internal and external parties.
Three institutions with unauthorized access have announced that the operation of their internal systems is continuing normally.
Cabinet Chief Secretary Kato Katsunobu stated that every precaution should be taken against cyber attacks, “Some attacks on infrastructure are expected during the Tokyo Olympics.” said.
Fujitsu, on the other hand, acknowledged that the data of its corporate customers were compromised due to unauthorized access to the system used for information sharing between internal and external parties.
Fujitsu has suspended its software service to investigate the attacks, in cooperation with the organizations affected by the system, according to the public broadcaster NHK.
The government’s National Center for Incident Preparedness and Cyber Security Strategies (NISC) announced that the product names and audit schedules of the computers in question have been leaked to external parties.