A couple of friends give me a stack of slot cards they picked up on a previous trip.

Most of the cards they gave me had their name on them.

So here’s the question: what kind of data is on the slot club card (besides name and account number)?

Is there a pocket reader on the market where someone could swipe a card and get important information from the card (i.e. address, SSN, phone numbers)?

What information is stored on a slot club card?

I really don’t want to trade my friend’s cards knowing that they have important information on them.

Thanks for any information on this.

Ron.