Microsoft said on Friday that the hackers behind the notorious SolarWinds cyberattack have launched a fresh campaign mostly focusing on U.S. interests that, while mostly unsuccessful, managed to compromise three entities. The Russia-based hacking group, which goes by various names including Nobelium, launched the new campaign using “password spray and brute-force attacks,” the Microsoft Security Response Center said in an alert, noting that 36 countries in total had been targeted. The bulk of the attacks—45 percent—targeted entities within the United States, followed by 10 percent in the UK, and smaller numbers in Germany and Canada. The activity targeted specific customers, Microsoft said, mostly IT companies (57 percent), government agencies (20 percent), followed by smaller percentages for non-governmental organizations, think tanks, and financial services. “This recent activity was mostly unsuccessful, and the majority of targets were not successfully compromised—we are aware of three compromised entities to date,” Microsoft said. The company did not …