I'm attempting to secure my wireless network at the moment and this seems to be proving a bit of a challenge.
So far I've added a Mac filter which seems to be keeping unauthorised P.C's out of the network (as I understand this it isn't much of a deterrent for most though as the Mac address can be picked up in packets and spoofed).
I've also added a WPA setting which seems to require wireless connections to need a password to join into the network (which works but it seems a dictionary attack on the password can reveal it).
Is this enough or should I look into the other option on my router (WEP)?
Also I'm managing to pick up someone else network (most of the time by accident as I've disabled the SSID broadcast from my router and my computer seems to automatically connect to the other). Should I attempt to warn whoevers network it is if I can (or would they be keeping it open for a reason?). Also what kind of stuff could be done to such a open network (for the moment it seems internet access is the main thing from the connection but would it be possible to connect to other P.C's on that network or monitor traffic for example?). On the flipside what could happen to users connected to the network (could the owners be monitoring sites that are being looked at whilst connected to the router for example?)?