Allowing people to control their own data may actually benefit companies in the long run.

Darty, Gadget Portrait (designed with Zeitguised) Chris Labrooy
Big data and the “internet of things”—in which everyday objects can send and receive data—promise revolutionary change to management and society. But their success rests on an assumption: that all the data being generated by internet companies and devices scattered across the planet belongs to the organizations collecting it. What if it doesn’t?
A version of this article appeared in the November 2014 issue of Harvard Business Review.