Does they keep In confidentially our own data? (like name, second name, own info from social network)?
During the final stages of us processing your data, we are going to anonymize it. That means this sort of information will not be present in the final analyzed data batch that we are going to be selling. So you don´t have to worry.
so the sensitive data are safe, they will be anonymised, so only our preferences without sensitive data will be resold to the advertising companies, i believe we can rest assured...