The traditional security for WiFi Wireless Networks is Wired Equivalency Protocol (WEP), which has been criticized for its failings. It can be broken into by using easily available tools, partly and perhaps largely because of its use of static, shared encryption keys. It's successor is Wi-Fi Protected Access (WPA) which is intended to address the shortcomings of WEP. However, a web-published paper by expert Bob Moskowitz points out that the new system has a serious flaw. It allows the use of simple passkeys that are subject to conventional dictionary attacks. EPWi-Fi Networking News: Weakness in Passphrase Choice in WPA Interface