Network Security is an organization's strategy and provisions for ensuring the security of its assets and of all network traffic. For the purposes of this discussion, the following approach is adopted in an effort to view network security in its entirety:
The IT Security Policy is the principle document for network security.
Most definitions of network security are narrowed to the enforcement mechanism.
The auditing process of network security requires checking back on enforcement measures to determine how well they have aligned with the security policy.