Hacker Develops Program To Make ATMs Spit Out Free CashCasey Chan7/29/10 4:49pm207EditPromoteGo to permalinkATMs use computers. Computers have weaknesses. Hackers exploit weaknesses. See where this is going? A hacker developed software that can force an ATM's computer to give free cash. Luckily for banks, he showed off his technique at the Black Hat conference.