not 'WPA/WPA2' but the PSK versions
as already mentioned, this is for the noddy 'better than WEP' version of WPA - aka
WPA-PSK. where a single passkey is used to get onto the WiFi network - as
supported by all modern access points and devices such as PSP, Xbox360, PS3,
modern laptops with windows,OSX Linux etc.
however, this brute-force is no good against WPA-Enterprise - which uses RADIUS
authentication...eg EAP-TLS or EAP/PEAP, EAP/TTLS etc. with this method a server
certificate proves the correct RADIUS authentication server (ie a secure and signed
way of validation) and, in the case of PEAP, using MSCHAPv2 inside a protected
tunnel, only a challenge,response is used - so no passwords cross the wifi anyway.
ANY real site would be using WPA-Enterprise - at this level, the WiFi ends up being
more secure and audited than the wired network.