Today is Data Privacy Day, a perfect opportunity to learn how to keep your smartphone from being used for tracking purposes. While it can feel like a daunting challenge to escape the intrusive tracking practices employed by tech companies, advertisers and other players in the surveillance economy, use the four tips below to start taking back control of your digital privacy.

For many children, smartphones are a gateway to greater independence and a more fulfilling social life. But smartphones can also open up a child’s life to the intrusive tracking, profiling and targeting that are table stakes for life in our digital world, potentially in ways that go beyond just advertising. Here, I’ll explore how smartphones are used by companies to legally surveil minors and what can be done to help children stay protected from the excesses of the surveillance economy.