This tiny device can infect point-of-sale systems and unlock hotel rooms

Millions of point-of-sale systems and hotel room locks can be hacked by temporarily placing a small, inexpensive device several inches away from their card readers.The device, due to be presented Sunday at the DEF CON conference in Las Vegas, is the creation of Weston Hecker, a senior security engineer at Rapid7. It was inspired by MagSpoof, another device created last year by security researcher Samy Kamkar.MagSpoof can trick most standard card readers to believe a certain card was swiped by ge