Computers, digital marketing, e-commerce, governments of different countries, regulators and censors, various sites — all of them receive info about you on the Internet. They create databases for various purposes, using your information as they want. In most cases, this is done to increase the time you spend online by making you interested in advertising, content and other resources on a topic of interest. In the worst case, attackers can use this data to violate your personal boundaries. How to protect yourself from them?