We trust there's a good reason you need to get on that Wi-Fi network. When you don't have login credentials, these tricks can help you connect.

As for the BackTrack 4 pre-release, commenters point out that it supports more wireless cards and can crack passwords faster using aircrack-ptw.

If you want to retrieve your Wi-Fi password from your computer, it's not difficult. Older passwords are a bit harder, but we'll show you how to retrieve both.

Struggling to connect to Wi-Fi? Maybe your laptop is connected but your phone isn't, or you need to share the network with a guest but can't remember the password. There are ways to wirelessly share ...

There are other services that can crack WPA using rentable cloud infrastructure, such as WPACracker, which uses its processor cluster to use dictionary attacks to crack Wi-Fi passwords.