Salt Typhoon

China-linked UAT-9244 deploys TernDoor backdoor and peer-to-peer implants against telecom infrastructure across South America, North America, and Europe.

Chinese state hackers accessed email accounts of House staffers working on China, foreign affairs, and defense. The intrusion was discovered in December.

From the largest cryptocurrency heist in history to nation-state espionage campaigns targeting critical infrastructure, 2025 redefined the cyber threat landscape.