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Abbreviation(s) and Synonym(s):



  Prevention of damage to, protection of, and restoration of computers, electronic communications systems, electronic communications services, wire communication, and electronic communication, including information contained therein, to ensure its availability, integrity, authentication, confidentiality, and nonrepudiation.
CNSSI 4009-2015 NSPD-54/HSPD-23
NIST SP 800-37 Rev. 2
NISTIR 7621 Rev. 1 under Cybersecurity CNSSI 4009-2015

  The ability to protect or defend the use of cyberspace from cyber attacks.
NISTIR 8170 under Cybersecurity CNSSI 4009

  The process of protecting information by preventing, detecting, and responding to attacks.
NISTIR 8183 under Cybersecurity CSF, Framework for Improving Critical Infrastructure Cybersecurity, version 1.0
NISTIR 8183A Vol. 1 under Cybersecurity CSF
NISTIR 8183A Vol. 2 under Cybersecurity CSF
NISTIR 8183A Vol. 3 under Cybersecurity CSF
NIST SP 800-160 Vol.2 [Superseded]

  the prevention of damage to, unauthorized use of, exploitation of, and—if needed—the restoration of electronic information and communications systems, and the information they contain, in order to strengthen the confidentiality, integrity and availability of these systems.
NISTIR 8074 Vol. 2 under Cybersecurity