Alternatively, Outbound Rules are all about protecting traffic that is leaving your client computers. Typically, when interacting with Outbound Rules, you will find yourself creating block rules. This may be useful when you have a special section of the network where you do not want users to have access (though this could also be done by blocking the traffic inbound at that location on the network itself). Another reason to create some Outbound Rules would be to restrict certain ports or protocols from flowing outbound from your workstations. Perhaps you have a set of computers that are Internet Kiosk machines, whose only purpose is to allow users to walk up and utilize a web browser. Generally, for web traffic, you only ever need outbound TCP ports 80 and 443, so you could use WFAS rules to block all outbound traffic other than ports 80 and 443, allowing internet browsing but blocking other things that the users may try to do.