You already know that if you want to lock down your Wi-Fi network, you should opt for WPA encryption because WEP is easy to crack. But did you know how easy? Take a look.

Here's the bad news: A new, free, open-source tool called Reaver exploits a security hole in wireless routers and can crack most routers' current passwords with relative ease. Here's how to crack ...

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.

Amazon's cloud computing service provides enough compute power to leverage a brute force attack to crack passwords for Wi-Fi networks, a security researcher claims.