Network Service Vs Local System

posted by  varson (7)  10 months ago (blogs.msdn.com)

Running a service as Local System is bad because it has powerful access to local resources, and Network Service should be used if possible.

After some research, I have found that from the perspective of a remote service, a local service running as Local System and Network Service behaves the same.  It is because the local service running as Local System or Network Service is authenticated as machine account to remote services.  Therefore, while Network Service is great for protecting local resources, it does not protect remote resources.

Locally Network Service