Impersonate this SecurityContext
An IDisposable instance that will revoke the impersonation of this SecurityContext, or null
Impersonate this security context. Further calls on the current thread should now be made in the security context provided by this object. When the IDisposable result Dispose method is called the security context of the thread should be reverted to the state it was in before Impersonate was called.
SecurityContext Class | log4net.Core Namespace