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.

Personally Identifiable Information, commonly referred to as PII, can be broadly defined as any data that could potentially identify a specific individual. Additionally, it may include any information that can de-anonymize a person from other persons or a set of anonymous data.