[svandamme]

it's all fun and games till a pedoperv downloads nasty pics from your connection Or somebody doing a hack or spam job from your broadband... and the feds come knocking on yer door...

Can you say "wasn't me !" ?
Well , you'll get plenty of opportunity to say that in the interrogation room !

Loads of people think they are secure because they set the router to not advertise it's name... big deal, as soon as your pc starts, it goes "where is XXXXX, where is XXXXX" .. effectively broacasting the name just like the router would have done...

You want your WPA-PSK encryption set with a decent key
You want your Wifi to filter on mac adresses
And you should get that done now, before somebody does someting on your connection that causes you to get in trouble