Thieves of the future will look back on today’s stick-up artists and have a good old belly laugh. Why would anyone ever rob a cashier with a gun, when all that is needed is a smartphone?

Matt Bergin, a security consultant at Core Security, discovered he could hack a cash register remotely, popping it open, by sending two digits from his smartphone to the service running on the cash register’s point-of-sale system. No gun or holdup note was required. He was able to do so through a vulnerability in Xpient, which makes point-of-sale software that runs on cash drawers.
http://bits.blogs.nytimes.com/2013/0...-way/?src=recg