Personal data is becoming increasingly valuable, but it is also being handled more and more carelessly. The student wanted to analyze what data is collected and how relevant or ‘dangerous’ it is. To do this, he read and visualized everything that Facebook knows and stores about him as JSON files. Even the things he had already deleted or forgotten. He worked with Sublime Text and mainly used the loop and random functions. The student would have preferred to make his tool publicly accessible, but unfortunately, the technical realization was not successful. The initial idea of evaluating all the data and creating an entire book or catalogue from it was also ultimately discarded, as the scope was simply too enormous and the implementation was not feasible.