I saw a video on YouTube of a person demonstrating how to collect card data, remotely with a long range RFID reader device. He hid it in a shoulder hung laptop bag, on his side. He walked through a food court at a shopping mall, and collected like 60 CC numbers. I don't know how much data he retrieved, but according to him, carders would be able to use that person's card by cloning it. I assume track 1 and 2 was retrieved by the device.
Does anyone here know about this and how to do it? What devices does someone need to do this and how to set it all up to begin collecting card data?