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security-relevant event

Definitions:

  Any event that attempts to change the security state of the system (e.g., change access controls, change the security level of a user, change a user password).  Also, any event that attempts to violate the security policy of the system (e.g., too many logon attempts).
Sources:
NISTIR 5153 under Security Relevant Event from DoD 5200.28-STD