Of course, it’s nice to receive news and see ads based on your interests. Together with Google and social networks, your web browser can tell a lot about you, your tastes and behaviours: who else knows about the shoes you added to the cart but changed your mind about and never purchased, the online store where you last ordered cupcakes for your friend’s birthday party or how you secretly love listening to Billie Eilish. Who do you think knows you better: your mom or your internet browser?