There is no doubt that our personal data belongs to us first. And we have the right to determine how this data is used and published. But does all my data really belong to me personally? We always assume that all information about me belongs to me. But is that true? What about my phone number or my email address? Are these really my property or do they remain in the possession of the provider who only provides me with these identifiers and only grants me the right to use them? The problem: According to current law, ownership can only exist in physical objects; unfortunately, data does not count as intellectual property.
On the other hand, data is a valuable asset. The business models of many large internet companies are based on offers that are financed by the users' data. Thus, the question of a possible "ownership of data" is quite justified. Who owns our data and who is allowed to use it?
In the case of personal data that can be clearly assigned to a person, the answer may still be quite simple: These data may only be processed on a legal basis. At the very least, we have a right to know which provider has stored which of our information and what it is used for. This right was enshrined in the European General Data Protection Regulation (GDPR).