Admittedly, the headline is designed to get your dander up. You're in no immediate danger of a technologically-gifted thief plugging a couple of wires into your hotel door and making off with your sack of souvenirs from the Mall of America. But that's not to say it's impossible. Cody Brocious, who was recently brought on by Mozilla to work on Boot to Gecko, is giving a presentation at the annual Black Hat conference in Vegas where he demonstrates a method for cracking open keycard lo