There is a good chance that your smartphone is collecting data about you.  It may track your movements throughout the day, count your steps, keep track of your networks, log your mobile shopping and banking activities, as well as your Angry Birds scores. More information about you may be coming from your fitness tracker, smartwatch, tablet, computer, TV and even the buildings you frequent.

Source The Globe and Mail - Friday, May 20 2016 : http://www.polymtl.ca/carrefour/doc/documents/EngineeringCanadaReport.pdf