U.S. officials have said that #Russia engaged in a widespread campaign of digital disinformation and hacking in the past two presidential elections, with particular effort dedicated to the 2016 election.
The governments of Belgium and Czechia also warned earlier in April that Russia was operating a disinformation and interference network targeting the upcoming EU parliamentary election.
According to the Microsoft report, Russia's campaign to sow disinformation in the U.S. has begun in earnest over the past month and a half but has yet to reach the height of previous efforts.
One of the more common methods is for Russia to spread fake "whistleblower" narratives, which are then picked up by U.S. media outlets.
"Ultimately, after the narrative has circulated online for a series of days or weeks, U.S. audiences repeat and repost this disinformation, likely unaware of its original source," Microsoft said.
The focus of the new campaign is to spread "divisive content," including criticism of U.S. support for Ukraine, the Microsoft report said.
