Modern technology has given us an interesting new dimension in two-sided markets where it is unclear who pays for what. We spend hours on the internet daily, and almost all of our activities leave a trace - both good and inconspicuous moments. Information collected online does not disappear by itself, but remains on many platforms for a long time, often without the user being aware. That is why privacy protection has become a central topic of conversation both at the level of individuals and society.
