The NSA publishes excellent cybersecurity resources: https://www.nsa.gov/press-room/cybersecurity-advisories-guidance/ https://www.nsa.gov/press-room/cybersecu

The NSA publishes excellent cybersecurity resources: https://www.nsa.gov/press-room/cybersecurity-advisories-guidance/ https://www.nsa.gov/press-room/cybersecurity-advisories-guid... I've highlighted advisories that may give you some perspective, listed in chronological order: Iranian Cyber Actors’ Brute Force and Credential Access Activity Compromises Critical Infrastructure Organizations Russian Military Cyber Actors Target U.S. and Global Critical Infrastructure North Korea Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs PRC MSS Tradecraft in Action