Hi BP... long time no see....
if you use
WEP encryption a rogue such as I can hack your network in anywhere from 20 secs to 2 mins... If I am desperate to rob bandwidth for nefarious purposes, and there are no unencrypted networks handy then I might have a hack....
WPA takes from 20mins to 2 hrs to hack... so I'm just gonna move on to a wep network or an unencrypted one.. way too much hassle...
No network is completley secure, but using WPA or WPA2 makes it too much hassle for the casual hacker come bandwidth thief.