'The Weirdest Trend in Cybersecurity': Nation-States Returning to USBs

Nation-state threat groups, including Camaro Dragon, Gamaredon, and Raspberry Robin, have increasingly reused USB drives as primary infection vectors to physically bypass network defenses and infect highly guarded government and critical infrastructure organizations in 2023; the report provides example incidents (a power company and a hospital), describes wormy backdoor behavior spreading via removable media across multiple countries, and recommends mitigations such as stricter removable-device policies, sanitation stations, scanning of USB files, and simple physical controls (e.g., taping ports).