Point-of-Sale (POS) devices are an essential part of modern life; the blood line for merchants. As plastic payment cards have become the default payment method, the security of POS devices has become more crucial. I was interested in learning how real-world POS machines maintain security but “close examination” without the owner’s consent is a crime. I have no friends in business using POS devices, so I decided to order a used device for investigation.
more here...........http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Hacking-POS-Terminal-for-Fun-and-Non-profit/ba-p/6540620#.U8Qw6fldWSo
more here...........http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Hacking-POS-Terminal-for-Fun-and-Non-profit/ba-p/6540620#.U8Qw6fldWSo