I just bought an Airport Express for my iBook and it made me thinking about security. I've currently set it up for the WPA2 personal security. Is that the best one or another one better? But my main question is what if someone is using an Airport Express/extreme and doesn't know anything about the security feature. Could someone walking by be able to hijack the internet and then set up a password so the actual owner can no longer access the internet without the password? I am NOT doing this. I just started thinking about it since I bought mine.