This policy setting allows you to audit events that violate the integrity of the security subsystem, such as the following: Events that could not be written to the event log because of a problem with the auditing system. A process that uses a local procedure call (LPC) port that is not valid in an attempt to impersonate a client by replying, reading, or writing to or from a client address space. The detection of a Remote Procedure Call (RPC) that compromises system integrity. The detection of a hash value of an executable file that is not valid as determined by Code Integrity. Cryptographic operations that compromise system integrity. Volume: Low. Default: Success, Failure. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\System Audit Policies\System\Audit System Integrity (2) REG: INFO NOT AVAILABLE