WiFi-blocking paint and wallpaper are a good start,
but if you need total protection from all those hackers that are out to get you, you're going to have to do something
about those windows, right? You could just live and work in a windowless sub-basement like we do, never seeing the
light of day or interacting with another living creature, or you could try and put an end to your paranoia with
Spyguard, a transparent film that blocks any and all WiFi signals from leaking out through your windows. You could also
just take your chances and secure your network by encrypting your traffic, it's really up to you.
[Via The Wireless Weblog]