A digital footprint is a trace of the actions we make in digital space. It's common to talk about a passive and active digital footprint. Passive is data that is collected independently of the user by search engines and online platforms. We form the active digital footprint ourselves, leaving personal information on the Internet. A digital footprint is also called a shadow, in essence, an electronic digital portrait of the user. Digital footprints affect our real lives. Advertisers, banks, and insurance companies evaluate our ability to pay, employers evaluate our competence and communication skills, intelligence agencies evaluate political views or propensity for conflict. But the same way our digital footprints can be followed by intruders. Then what should you do with your digital footprints?