MIT students create and circulate open source, covert RFID rings to subvert campus tracking system

Credit card signatures: It depends on the store. If the store is in a high-crime area, they’ll ask for your driver’s license and actually match you to the card. For a $5 purchase.

Also, if you’re selling very high-end merch, you get the special VIP treatment. We take you into the hidden ‘VIP’ room where you can sit at a table, a salesman pours you a beer, we all stand around and chat with you - while another salesman runs into the back room and runs a quickie credit check on you.

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