Except it is easy to fake the key, there are videos of Major Malfunction changing the key to lock out all other keys, to lock out "older" keys and all kinds of

Except it is easy to fake the key, there are videos of Major Malfunction changing the key to lock out all other keys, to lock out "older" keys and all kinds of other neat tricks. Copying and modifying the data is too simple, there is no real security on those cards. The data is not encrypted on the card, it is just a proprietary format. Once you get a couple of cards it becomes easy to understand the various different data fields and what they mean.