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"Researchers from the University of Cambridge have discovered flaws in the card payment systems used by millions of customers worldwide. Ross Anderson, Saar Drimer, and Steven Murdoch demonstrated how a simple paper clip can be used to capture account numbers and PINs from so-called 'tamper-proof' equipment. In their paper (PDF), they warn how with a little technical skill and off-the-shelf electronics, fraudsters could empty customers' accounts. British television featured a demonstration of the attack on BBC Newsnight."

http://www.cl.cam.ac.uk/research/security/banking/ped/
http://video.google.com/videoplay?docid ... 5266883498
http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-711.pdf