Strontium — a group linked to Russian military intelligence — was using the domains to target Ukrainian institutions, Microsoft said.

Russia long has targeted world anti-doping organizations.

Europeans go to the polls in May, and Microsoft is warning that not enough democratic organizations are protected from hackers.

Microsoft says the Russian-linked hacking group known as Fancy Bear, famous for its alleged hacking of the Democratic National Committee, is now exploiting two Windows vulnerabilities in…