Hackers broke into the Pentagon's internal communications system, SIPRNET.

The hackers managed to break into the American system "SIPRNET", which was used to provide communications for the Pentagon. The system was shut down for several hours, effectively leaving the US Army without coordination with the US Department of Defense.

“The Pentagon's internal communications system, SIPRNET, was urgently shut down for a software update Tuesday morning following a massive hacker attack on government resources. A number of US media outlets, such as the Washington Post, wrote about the involvement of Russian intelligence in the incident. The Russian Foreign Ministry categorically rejected these accusations. "SIPRNET" is a system of interconnected computer networks used by the US Department of Defense and the Department of State to transmit information of limited distribution, including one that is classified ", - about it сообщает Russian information publication "Moskovsky Komsomolets".

It is noteworthy that hackers could get access to the SIPRNET system much earlier, since it was hacked through discovered internal vulnerabilities, which is also evidenced by the fact of software updates, which does not exclude the fact that hackers could well have taken possession of a large amount of secret information.

Who exactly might be behind the hacking of the Pentagon's internal communications system "SIPRNET" remains unknown.