This was in ZDNet this morning regarding wireless security concerns

http://news.zdnet.com/2100-1009_22-5540969.html

and I found a few points interesting.

some industry experts point out that the day of sitting outside someone's house to steal their bandwidth is being outdated by signal boosting technology that lets individuals get onto a network that's miles away. "A signal enhancer available at your local RadioShack can give someone access from as far as 50 miles away,"
That's comforting.

Force Field Wireless has begun marketing latex house paint it claims will block wireless radio waves from escaping through the walls of a home. Known as DefendAir, the paint is laced with bits of copper and aluminum that help form an electromagnetic shield around your house, Force Field said. The paint, which sells for $69 a gallon, is certified nontoxic and lead free, and comes only in one color--gray.
Scotty, shields up!!!!