The U.K. says Russia is responsible for a massive cyberattack last year that spread across the globe.
Specifically, the U.K. government is pinning the blame on the Russian military.
The 2017 attack initially targeted financial, energy and government sectors in Ukraine but expanded across Europe. It's estimated to have cost companies over $1.2 billion.
The NotPetya malware infected computers and locked their hard drives. It would then demand a $300 ransom in Bitcoin.
Russia denies the accusations.
Additional reporting from Newsy affiliate CNN.
