In a blog post, the technology company reported that a group nicknamed “Strontium” used seven Internet domains as part of an effort to spy on government agencies and think tanks in the EU and the United States, as well as Ukrainian media outlets. Organisations. Microsoft did not name any of the targets. Strontium is Microsoft’s nickname for a group often referred to as Fancy Bear or APT28 – a hacking group linked to Russia’s military intelligence service. The Russian embassy in Washington did not immediately respond to a request for comment. Ukraine has been plagued by piracy attempts since Russian forces invaded the country in February.