Jan-Ulrich HoltgravePhD StudentTeamUSECEISCISPAProfileEmail:jan-ulrich.holtgrave@cispa.deSelected PublicationsHow Transparent is Usable Privacy and Security Research? A Meta-Study on Current Research Transparency PracticesJan H. Klemmer, Juliane Schmüser, Fabian Fischer, Jacques Suray, Jan-Ulrich Holtgrave, Simon Lenau, Byron M. Lowens, Florian Schaub and Sascha Fahl. 34th USENIX Security Symposium PDF Abstract Cite URLA Qualitative Study of Adoption Barriers and Challenges for Passwordless Authentication in German Public AdministrationsJan-Ulrich Holtgrave, Sabrina Klivan, Karola Marky and Sascha Fahl. CHI Conference on Human Factors in Computing Systems (CHI ’25), April 26–May 01, 2025 PDF Abstract Cite URLAttributing Open-Source Contributions is Critical but Difficult: A Systematic Analysis of GitHub Practices and Their Impact on Software Supply Chain SecurityJan-Ulrich Holtgrave, Kay Friedrich, Fabian Fischer, Nicolas Huaman, Niklas Busch, Jan H. Klemmer, Marcel Fourné, Oliver Wiese, Dominik Wermke and Sascha Fahl. Network and Distributed System Security (NDSS) Symposium 2025, February 24-28, 2025 PDF Abstract Cite
