Why does Sharing Preference open Unlocked when it is Locked before shutdown

Several times over the last few days I have checked the Firewall and found that it has been unlocked after I lock it - without my using a password to unlock it. The first time I found "Network" checked, so I unchecked it and thought it was a fluke, then within about 10 minutes another item appeared to be checked Called "CVS" what are these specific items for? Does this have to do with any security settings by other software?

If you have the Time/Date CP set to check Internet for time, then that explains Port 123.
"UDP port 2401 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 2401 makes possible the transmission of a datagram message from one computer to an application running in another computer."
MS is famous for opening ports and checking your whole Nerwork for other copies of their SW.
It's also used for "anonymous password authentication"...
http://www.gigascale.org/softdevel/faq/16.html

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