The mass outage of Ukrainian mobile and internet provider Kyivstar on December 12 last year has now been attributed to the Russian state-sponsored Sandworm group by Ukraine’s Security Service (SBU). The attack resulted in a total outage of the networks provided by Kyivstar, which included several early-warning attack systems and caused a surge in traffic on other network providers in Ukraine as people sought alternative means of connectivity. It has now been determined that the group were ling
