Yesterday, as the US Intelligence Community reported on Russian election hacking—it's calling the campaign "Grizzly Steppe"—the Government announced its first round of sanctions against Russian individuals and organizations. President Obama amended Executive Order 13964 (April 2015) to "address the national emergency with respect to significant malicious cyber-enabled activities," authorizing sanctions against those who interfere with elections. Two intelligence services (GRU and FSB), three companies supporting those services (STLC Ltd., Zorsecurity, and ANO PO KSI), and four named GRU officers were immediately sanctioned.
The State Department declared thirty-five Russian diplomats from the Washington embassy and San Francisco consulate persona non grata for actions "inconsistent with their diplomatic and consular status." State says the expulsions are prompted both by attempts to interfere with US elections and by "harassment" of US diplomatic personnel and activities.
Russian Foreign Minister Lavrov publicly recommended retaliation against a like number of US diplomats, but early this morning President Putin turned the recommendation down (for now), not wishing, he says, to descend to the Americans' low level.
The joint FBI-DHS report on Grizzly Steppe describes the campaign as the culmination of a decade of Russian intelligence services' hacking. US citizens are urged to be on the lookout for Bears.
Russian authorities deny hacking charges—RT sniffs at US evidence, citing in support of Russian innocence various IC-skeptical tweets and the alleged puerility of names like Fancy Bear and Cozy Bear.
A Guardian op-ed sums up by saying we're in the midst of an unacknowledged world cyberwar.