If only SOny would be honest about this. The same goes for Nintendo and Microsoft. The same goes for the MPAA who sue the makers of region free media players.
YOU ARE REALLY SUING FOR 'LOSS OF A CONTROL OVER A MARKET'. Can one sue for that? Well they can, if they manipulate clauses in copyright acts to change the focus from what the modifications in question ARE USED FOR to how they are MADE. Ok, so THEN they sue for the breach in copyright required to MAKE the modification, ie, the illigitimate use of keys and code.
But this is rubbish. These companies and organisations lobbied ... er ... I mean 'bribed', the US government for years to put such language into acts like DMCA. They made it look 'fair' by even claiming to make available, 'managed copies' in the DVD age. Um ... where were they? According to the DMCA, any technology that cracks content protection and even region protection codes is in violation because of the reason stated above.
It is sickening that such things be distorted as copyright infringment, put up there with ACTUAL examples of piracy. How can consumers be a criminalised in such a way?