QUOTE (fatal2ty @ Mar 14 2008, 04:04 PM)

but if you don't know the MAC addresses that are allowed on the network, your gonna be spending a lot of time brute forcing your way in. With encryption you don't really even need the key anymore.
Not saying its completely secure, just saying its better than nothing, and in 95% of cases, your fine.
But yes, Public facilities and important information should only be available through wired networks
but you can find out easily what mac addys ARE allowed. you sit there and you listen for packet exchange. boom. good MAC numbers.
QUOTE
Actually I'm far less worried about public safety--in fact, that's a perfect example of something you should have a multiply-redundant mesh network for--and far more worried about privacy and identity theft. For that reason I never give out my credit card information over a wireless network, be that cellphone, computer, cordless phone, saying it aloud when in a crowded place like a bank or store, etc.
let me introduce you to the act of
SWATting(LINK)No Public service over current IP standards. they are riddled with holes.