Security is layered like a seven-layer-cake; we stack multiple pieces together to make
it less likely that someone will be willing and able to climb over all the hurtles.
First, all of the security can be performed directly on your WiFi Router yourself;
If you report the make and model number of the router OR if you have the manual
for the device, the instructions are there for you. The outline of making your WiFi secure is:
- change the admin password and disable remote administration
- set the SSID to something other than the default
- chose a non-standard channel number
- use the Allow only MAC list feature
- add encryption
On (4) you will need to get the MAC address for all wifi adaptors from the family systems/xbox devices.
Typically go to each box and use
run->cmd /k ipconfig /all
and the MAC address will be displayed.
On (5) we much prefer to use WPA/WPA2 over WEP as it is more secure.
HOWEVER, there situations were one vendor's WPA will not connect to another
forcing the use of WEP.
WEP + MAC filtering will be just fine.
Most WiFi routers have a page that will report all devices that are connected.
You can watch that for 'foreign users' from time to time or if you suspect that there
might be a hijacker. You should also be able to force a disconnect on them