This paper is aims to give a brief overview of the following issues: (i) Polish data retention regime and its drawbacks; (ii) the use of data retention in practice and available
data on the subject; (iii) campaign run by the Panoptykon Foundation over last two years; and (iv) political shifts that occurred in Poland.

Your online profile is not always built on facts. It is shaped by technology companies and advertisers who make key decisions based on their interpretation of seemingly benign data points: what movies you choose watch, the time of day you tweet, or how long you take to click on a cat video.