Ukraine accuses Russia of waging "hybrid war"

• The malware operation had infected an unknown number of Ukrainian government agencies, as well as nonprofits and information technology organizations, Microsoft said.

Why it matters: The malware operation comes just days after diplomatic talks between the United States, European allies and Russia hit a dead end, augmenting fears of a potential invasion of Ukraine.

What they're saying: "All the evidence points to the fact that Russia is behind the cyberattack," the statement read.

• "Moscow continues to wage a hybrid war and is actively building forces in the information and cyberspace."
• "The latest cyberattack is one of the manifestations of Russia's hybrid war against Ukraine, which has been going on since 2014."

Go deeper: Most of Ukraine's government sites back online after "massive" cyberattack