I am using an older PC running Linux as a physical fire wall between the internet and my wireless router. I have a hodge-podge of security and packet sniffing software on that PC that lets me track and control all TCP ports coming into my network. Unfortunately, I do not have the same on the wireless network itself so I have to trust the encryption to a large extent and I have blocked off a lot of the ports I do not use with-in the router software. But the tranmitter/receiver is barely powerful enough to get out of the house, much less off the property when I have it situated.