Andy Greenberg reports:
In the notorious 2016 breach of the Democratic National Committee, the group of Russian hackers known as Fancy Bear stole the show, leaking the emails and documents they had obtained in a brazen campaign to sway the results of the US presidential election. But another, far quieter band of Kremlin hackers was inside DNC networks as well. In the three years since, that second group has largely gone dark—until security researchers spotted them in the midst of another spy campaign, one that continued undetected for as long as six years.
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