The UK government claimed that Russian intelligence agency GRU was responsible for cyber attacks costing "millions of pounds and sought to undermine national security."
In addition, the UK government has asserted that Russian intelligence was behind 2017's Badrabbit attack, the 2017 document leak from WADA, the 2016 DNC leak and a hack of a UK TV station.
READ MORE: 5 of the Most Absurd US 'Russian Hacker' Narratives
The US government has also accused Russia of meddling in 2016 presidential election by hacking Democratic National Convention servers to leak compromising information. The hacking accusations have been rejected by Moscow, while US President Donald Trump said there was no evidence to suggest election results had been swayed in his favor. Similar unfounded accusations have been made in Germany and France.