The Russian hacking organization responsible for last year’s SolarWind hack, the targets of which included U.S. government agencies, is continuing their efforts, a Microsoft executive is alleging.

Nobelium, the hacking group that the U.S. government has identified as a part of Russia’s foreign intelligence service, is now targeting “resellers and other technology service providers that customize, deploy, and damage cloud services and other technologies on behalf of their customers,” Tom Burt, Microsoft’s corporate vice president of customer security and trust, said in a blog post on the company’s website.