Communications security

Hacking Your Phone

A lot of modern life is interconnected through the Internet of things -- a global empire of billions of devices and machines. Automobile navigation systems. Smart TVs. Thermostats. Telephone networks. Home security systems. Online banking. Almost everything you can imagine is linked to the world wide web. And the emperor of it all is the smartphone. You've probably been warned to be careful about what you say and do on your phone, but after you see what we found, you won't need to be warned again.

We heard we could find some of the world's best hackers in Germany. So we headed for Berlin. Just off a trendy street and through this alley we rang the bell at the door of a former factory. That's where we met Karsten Nohl, a German hacker, with a doctorate in computer engineering from the University of Virginia.