I've lost a card that I'm pretty sure was one of those old dark-blue Chase PIN-only ATM cards (as opposed to an actual Visa/MC debit card; you know, the kind you can only use at an ATM machine, and only by entering the 4-digit PIN,). I never used the thing (always used my debit card instead); it must have simply slipped out of my wallet at some point. I called Chase and they assured me that the only card I currently have attached to my bank account is my debit card. But I can't help but wonder whether somebody might be able to find some evil use for the thing if they pick it up.... Sure, they don't have the 4-digit PIN, but maybe there's some way of extracting that data.... Should I actually open a new bank account and shift my funds over to it, or would that count as paranoia since the bank is telling me I'm OK? I don't even know whether PIN-only cards expire. Does a debit card automatically replace/supplant an older ATM-only card on the same account?