“60 Minutes” Segment Discusses How Our Personal Online Data is Tracked, Bought and Sold

The March 9, 2014 broadcast of “60 Minutes” provides a good basic introduction to the activities of data brokers – how online personal data is tracked, bought, and sold without users’ knowledge:

Additional online-only content at the “60 Minutes” website  provides more details about data brokers’ surveillance of online activity and how individuals can protect their personal privacy online.