When it came to setting up Wi-Fi networks, if you knew what you were doing you would enable WPA security. This would keep people with a small amount of knowledge from gaining access to your network, which is very easy with the much weaker WEP security. No more! WPA security has now been cracked, rendering all but the most tightly-locked networks open for hacking.

http://gizmodo.com/5078317/wpa-wi+fi...-longer-secure