random noob question sorry.
you know those blank gift cards that you can get that look just like credit cards? are they of any use at all if you have them blank and deactivated? of course the common sense security measure they use is that they're worthless until you load money on them at the cash register/online. is there a way to arbitrarily add value to the card(s) without adding actual cash.
suppose i had a blank expired card like one of these. and, completely making these numbers up, of course-- if i ran it through a cardreader and got the following:
is there any "encrypted" data to be found, or is it pretty much trash?
is this a legal question? so sorry if i'm violating