Strategy, policy, and standards regarding the security of and operations in cyberspace, and encompass[ing] the full range of threat reduction, vulnerability reduction, deterrence, international engagement, incident response, resiliency, and recovery policies and activities, including computer network operations, information assurance, law enforcement, diplomacy, military, and intelligence missions as they relate to the security and stability of the global information and communications infrastructure.
Retrieved and adapted from Security and Privacy Controls for Federal Information Systems and Organizations. CNSSI 4009, NIST SP 800-53 Rev 4 ,NIPP, DHS National Preparedness Goal, White House Cyberspace Policy Review. (2018). https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r4.pdf