Why is it preferable to use open system authentication on a wireless network using WEP rather than shared secret authentication?

Setting up your router's wireless security is the best way to prevent other people from using your wireless internet connection. Your Linksys router supports three (3) of the most commonly used wireless security types: WEP, WPA and WPA2 Personal.

WEP is out dated. Try the using WPA and WPA2 wireless security setting types