Actions taken to defend against unauthorized activity within computer networks. CND includes monitoring, detection, analysis (such as trend and pattern analysis), and response and restoration activities.
Note: Within DoD, term was approved for deletion from JP 1-02 (DoD Dictionary) by issuance of JP 3-13, "Information Operations". This term has been replaced by the use of “cyberspace defense" used in JP 3-12, "Cyberspace Operations." Original source of term was JP 1-02 (DoD Dictionary).