Also see We are taking new steps against broadening threats to democracy (Microsoft Blog)
"“This apparent spear-phishing attempt against the International Republican Institute and other organizations is consistent with the campaign of meddling that the Kremlin has waged against organizations that support democracy and human rights,” said Daniel Twining, IRI’s president, who put blame on Russian President Vladimir Putin. “It is clearly designed to sow confusion, conflict and fear among those who criticize Mr. Putin’s authoritarian regime.”Microsoft says it has found a Russian operation targeting U.S. political institutions -- The Washington Post
The move by Microsoft is the latest effort by Silicon Valley to address Russian threats to the coming election more aggressively than the technology industry did in 2016, when many woke up to the seriousness and sophistication of disinformation efforts only after Americans had voted. Companies and U.S. officials have vowed to work together more closely this year. Facebook recently disclosed that the company had taken down 32 fake accounts and pages that were tied to the Internet Research Agency, a Russian disinformation operation active before and after the 2016 election."