Hackers can track your every call and movement, using just your phone number
Security experts say breaking into an unencrypted smartphone is easier than you think -- and they've spied on a US Congressman's phone calls to prove it.
German computer engineer Karsten Nohl told "60 Minutes" in America that all a hacker needs is a phone number.
From there, Nohl says hackers can "track [the owner's] whereabouts, know where they go for work...spy on whom they call and what they say over the phone. And you can read their texts."
