Note: I've also posted a question for this issue on non-Windows systems. In NIST SP 800-53 Rev. 3, IA-5 is the control addressing "Authenticator Management". The requirements in this control include ...
From NIST SP 800-53, Rev. 3: SC-10 NETWORK DISCONNECT Control: The information system terminates the network connection associated with a communications session at the end of the session or ...