A satellite communications system serving the Russian military was knocked offline by a cyberattack late Wednesday and remained mostly down on Thursday, in an incident reminiscent of an attack on a similar system used by Ukraine at the start of the war between the countries.
Dozor-Teleport, the satellite system’s operator, switched some users to terrestrial networks during the outage, according to JD Work, a cyberspace professor at the National Defense University. Analyst Doug Madory of Kentik, which monitors online traffic, said one network was taken over by Dozor’s parent company, Amtel-Svyaz, while three others remained down.