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U.K. points finger at Russia for massive NotPetya attacks

Man in silhouette in front of screen projecting NotPetya ransom screen.
NotPetya malware wiped hard drives disguised as the Petya ransomware. Photo: Alexander Ryumin / Getty

The British National Cyber Security Centre said Thursday that "the Russian military was almost certainly responsible" for the disastrous NotPetya malware attack.

Why it matters: NotPetya created massive global damage last June, with $300 million to shipping giant Maersk alone. But, cybersecurity firm ESET calculated that 80% of its damages were centered in Ukraine. That was by design. The malware was affixed in an update to accounting software M.E.Doc, which is widely and almost exclusively used in Ukraine.