In the post-Snowden world we became well aware that data we store on servers belonging to private companies tends to have a second life. It is where secret services and law enforcement meet the Internet. How to prevent bulk transfers from private to public data bases? How to make sure that due process is in place? What do we know about disclosures of our data and how can we learn more? Katarzyna Szymielewicz explains, what we should know about state authorities access to citizens data and why. She also presents the results of Panoptykon Foundation’s research on public authorities’ access to the data of Internet services users.