Cory Doctorow: Tech companies exploit the way we undervalue privacy

How much is your personal data worth? Will photos you post on Facebook or your Foursquare check-in data get you into trouble in five years’ time? In one of the standout talks at this week’s O’Reilly Strata Summit, author and Boing Boing editor Cory Doctorow explained why people undervalue their privacy and how data-driven companies exploit this mis-pricing of privacy.