Which agency led the SolarWinds attack?

• A. GRU.
• B. FSB.
• C. KGB.
• D. SVR.

Answer: (D)

The SolarWinds campaign is attributed to Russia’s Foreign Intelligence Service, the SVR. This agency focuses on foreign intelligence gathering and has a history of covert, long-running cyber operations, which matches how SolarWinds unfolded—a supply-chain intrusion that granted broad access over an extended period to obtain strategic information. U.S. government authorities publicly linked the activity to SVR personnel, making SVR the most widely accepted attribution. The GRU is Russia’s military intelligence arm and has been tied to other cyber campaigns, the FSB handles domestic security, and the KGB is the former name of a now-defunct agency. So the SVR is the best fit for this attack.