Matthias Enzmann, Senior Researcher at the Fraunhofer-Institute for Secure Information Technology in Darmstadt, Germany. For correspondence: <mailto:matthias.enzmann@sit.fraunhofer.de>. Annika Selzer, Senior Researcher and Privacy Coordinator at the Fraunhofer-Institute for Secure Information Technology in Darmstadt, Germany. For correspondence: <mailto:annika.selzer@sit.fraunhofer.de>. Dominik Spychalski, Researcher at the Fraunhofer-Institute for Secure Information Technology in Darmstadt, Germany. For correspondence: <mailto:dominik.spychalski@sit.fraunhofer.de>. This work has been funded by the German Federal Ministry of Education and Research and the Hessen State Ministry for Higher Education, Research and the Arts within their joint support of the National Research Centre for Applied Cybersecurity.