Johannes Lohmöller

Researcher and PhD student

Biography

Johannes is a researcher and Ph.D. student in computer science. He joined Klaus Wehrle’s Chair of Communication and Distributed Systems at RWTH Aachen University in November 2021. Before, he graduated with an M.Sc. and B.Sc. in Computer Science from RWTH Aachen University in 2021 and 2019, respectively. His research interests focus on privacy-preserving methods for data analysis, especially in medical research, including confidential computing, homomorphic encryption, and differential privacy.

Education

Pursuing PhD in Computer Science

2021

RWTH Aachen University

M. Sc. in Computer Science

RWTH Aachen University

B. Sc. in Computer Science

RWTH Aachen University

Research Interests

Privacy Enhancing Technologies Federated Information Systems Information Security

Looking for a thesis?

I always seek motivated students doing a bachelor’s or master’s thesis at COMSYS. If you are interested in privacy-preserving methods or the security of distributed systems, we should get in touch! You can expect cutting-edge research topics, extensive supervision and regular feedback. Usually, I also invite motivated students to co-author follow-up paper projects.

Still unsure or trying to figure out a good idea? No problem! Email me two sentences on your motivation and general research interests. Also include a recent transcript of records or another reference and we might find a suitable thesis topic together.

Recent Publications

See all

Johannes Lohmöller, Hajeong Jeon, Jael Hentschel, Klaus Wehrle, Jan Pennekamp Between Promise and Practice: Challenges and Misperceptions of Applying Privacy Enhancing Technologies in Business Contexts. Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS ‘26), Jan 6 - Jan 9, 2026, Lahaina, HI, USA.

code Zenodo DOI PDF

Jan Pennekamp, Johannes Lohmöller, Niels Pressel, Sandra Geisler, Felix M. Mottaghy, Klaus Wehrle PatDiscover: Privacy-Preserving Discoverability of Patients. Proceedings of the 2025 Annual Computer Security Applications Conference Workshops (ACSAC Workshops ‘25). Presented at the Workshop on Cybersecurity in Healthcare (HealthSec ‘25), Dec 9, 2025, Honolulu, HI, USA, co-located with the 41st Annual Computer Security Applications Conference (ACSAC '25).

github GitHub DOI PDF