Why WEP Is Hackerific
So if the shared key is just kept between people who need be on the network, why is WEP so bad? As long as you don't share the password, your network should be fine, right? Not exactly. Frankly, with patience and dilligence, it's very easy to hack wired equivalent privacy protocols.
When first introduced, WEP was the standard in terms of wireless protocols, but there was a slight problem. The problem was the initialization vectors, or IVs. These are three byte numbers that are generated from the computer at random. IVs are based on a 24 key algorithm, which isn't long enough to ensure that the numbers generated won't be repeated, which allows for some of these strings to show up again and again.
If a person gathers enough of these IVs, they would able to decipher the shared key, meaning they would be able to get on the computer network.
And the availability of different types of programs that can help users crack the WEP allows for those who aren't hackers or thieves onto the networks of their neighbors or passerbys.