If you still use WPA as encryption standard of your wireless access point, you better switch to WPA2 now, because a new hacker playground just has been opened.
My recommendation: Leave your WLAN open and do others a favour (flatrate is a nice thing anyways) - and use strong encrypted VPN software for accessing whatever needs to be secure. fra http://www.pcworld.com/printable/article/id,153396/printable.html http://pacsec.jp/
