American officials claim that a group of hackers known as APT29, or more evocatively as Cozy Bear, thought to be part of the SVR, Russia’s foreign intelligence service, penetrated several American government bodies—the list so far includes the Treasury, Commerce, State and Homeland Security Departments, along with the National Institutes of Health—where they could read emails at will. It appears to be one of the largest-ever acts of digital espionage against America.
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