regular cable is "Scrambled" so it is just a matter of figuring out how they are scrambling it and descrable it via a chip. when they change the way they scramble it, the chip needs to be reprogrammed or replaced.
I know less about regular satellite, but I know that you can buy cards that will get your box to work and you have to replace them frequently.
digital cable and digital satellite are not scrambled - they are encrypted. and like I said, I'm pretty sure it is a rotating key scheme - which is not gonna be easy to break unless they have some shitty key length going on. every dig cable box has the chip in it to decrypt the signal - but they are customized for each provider and even different in different areas (I've heard but have zero clue if it is true that it is different in diff parts of a city even).
so to say they will come out with something to break it... well - there is no need - you just need to get a box that is ready for it... the problem is knowing which one you need.