"US Investigators Say SolarWinds Hack is ‘Likely Russian in Origin’"

After an intensive investigation, U.S. government agencies have concluded that the espionage operation that uses tampered software made by SolarWinds was most likely Russian in origin. The investigators also indicated that the espionage operation was targeted. The malicious software update went to some 18,000 government and private-sector customers. The FBI stated that fewer than 10 U.S. government agencies had been comprised by follow-on activity on their systems. Russia has denied involvement in the SolarWinds hacking operation. The adversaries behind the SolarWinds campaign have challenged the defenses of America's biggest tech and cybersecurity firms. The attackers were able to view Microsoft's source code, and they stole the security tools that FireEye uses to test its clients' defenses.

Cyberscoop reports: "US Investigators Say SolarWinds Hack is ‘Likely Russian in Origin’"