Known WEP Imperfections

There is a major problem with WEP: it has a number of imperfections
that make it highly detrimental to any serious security concerns about
protecting your WLAN. Due to this fact, WLANs using WEP are susceptible
to being attacked in a number of new ways.
WEP also suffers from being vulnerable to not accounting for unauthorized
traffic or decryption that may result from a hacker who is trying
to log in fraudulently to the access point in your WLAN. These problems
make WEP a poor choice as the only means of protecting your
network against possible intrusions. In order to defend yourself appropriately,
you should maintain a virtual private network in combination
with using WEP, so that when a hacker “cracks” the encryption scheme
for WEP, he would also have to break the encryption scheme of the VPN
carrying the individual packets of network traffic. If you make it much
more difficult for the hacker to do his job, you have a reasonably greater
measure of security protecting your WLAN.