PSA is a tool to get all informations about you that are lying around in the internet. You can also play a game about how well you know your tweets/things that you posted online.
Watch our presentation: https://media.ccc.de/v/jh-berlin-2018-43-psa
See our slides: https://jugendhackt.github.io/PSA/presentation/
Try it out: https://psa1.uber.space