Which encryption standard is the best?
The main choices that you will have for encrypting your wireless network are WEP (Wired Equivalency Protocol), WPA (Wi-fi Protected Access) and WPA2. The main difference between WPA and WPA2 is the algorithm that they use to encrypt the transmissions. All three are better than nothing; however they vary in how effective they are.
WEP: Wired Equivalency Potocol (WEP) is the oldest of the three, and has been cracked for quite a few years. So using it is analogous to putting a padlock on the gate, locking, it, but leaving the key hanging next to it.
WPA: WPA is more secure than WEP, because it uses a passphrase instead of a generated key. And the encryption is done with Temporal Key Integrity Protocol (TKIP). However, this has recently been partially cracked as well. But, it's not a simple task and the actual key is not cracked, so it's still more secure than WEP.
WPA2: This is an improved version of the WPA encryption. It uses a different algorithm called Advanced Encryption Service (AES). This algorithm is harder to crack, thus WPA2 is the best choice to secure your network with (as long as all devices support it).