What he has done is the same as if he bought a movie on DVD. That DVD is his to do what he wants with it but the film on the DVD does not belong to him is belongs to the makers, so when he starts posting the film for everyone to see he screwed up. This is no different.
I wish people could get their facts straight.
A movie is an artwork. Artwork can be copyrighted.
A master key is a binary INTEGER. Integers cannot be copyrighted.
Oddly, product identification codes such as ISBN numbers and UPC barcode numbers can be protected, at least in the US
you are not allowed to generate your own and claim it's UPC's or ISBN's. that could be fraud depending on xyz. might apply to GeoHot here provided Sony can successfully claim that only they have the right to generate and distribute their security keys for their products and services.
UPCs and ISBNs are different. They need an independent governing body in order to prevent doubling up of codes. Nothing worse than the commercial sector being in disorder.
In the case of security keys, there is no governance thre. It's up to the key user to ensure the safety of their key.
UPCs and ISBNs are examples of numbers (or integers) which have been generated, distributed, and are protected against misuse, are they not? you claimed that no number could be afforded protection, obviously you were mistaken.