"At the moment, the investigation has established that the virus was isolated in the business part of the network and did not affect important functions of national security, including the US National Nuclear Security Administration," RIA Novosti reported.
It is noted that actions have been taken to combat the threat.
Earlier, the Office of the Director of National Intelligence, the FBI and the Cybersecurity and Infrastructure Security Agency (CISA) issued a joint statement, which refers to the identified "significant cyber incident" that "affected networks within the federal government."