Why is this type of security can be penetrated? Here we have to understand what actual WEP key, the system security is the security system is the most easy to hack in and penetrated. This I have described in the preceding chapter, because the static WEP key and secret key in the process that is divided and given life by the user on the sender to the relay initialization Vector 24bit (IVs), to input the WEP key into the list of random number generator so that the key stream the same frame with the payload length plus 32bit Integrity Check Value (ICV). WEP IVs include clean up some of the first byte in the frame. Now with only 24 bit that is eventually to use WEP IVs for the same data in different packages.