On many cards there's the instruction to, if found, cut it in two pieces and mail them to some address. I'm wondering a bit about the security of this and if I could recover some data.
It's not necessarily a perfect cut through the exact middle, since people usually aren't that careful.
First off, if I cut the magnet stripe in half, can I repair it, or get the data off of it to make a copy?
Secondly, if I cut the chip in half, how likely is it that it's too broken to recover data from?
Thirdly, contactless payments. Same question.