Business Insider reports:

Russia’s troll factories were, at one point, likely being paid by the Kremlin to spread pro-Trump propaganda on social media.

That is what freelance journalist Adrian Chen, now a staff writer at The New Yorker, discovered as he was researching Russia’s “army of well-paid trolls” for an explosive New York Times Magazine exposé published in June 2015.

“A very interesting thing happened,” Chen told Longform’s Max Linsky in a podcast in December.

“I created this list of Russian trolls when I was researching. And I check on it once in a while, still. And a lot of them have turned into conservative accounts, like fake conservatives. I don’t know what’s going on, but they’re all tweeting about Donald Trump and stuff,” he said.

In his research from St. Petersburg, Chen discovered that Russian internet trolls — paid by the Kremlin to spread false information on the internet — have been behind a number of “highly coordinated campaigns” to deceive the American public.

It’s a brand of information warfare, known as “dezinformatsiya,” that has been used by the Russians since at least the Cold War. The disinformation campaigns are only one “active measure” tool used by Russian intelligence to “sow discord among,” and within, allies perceived hostile to Russia.