CYBER-DEFENCE FELLOWSHIPS: Christoph Landolt

© 2025 EPFL

© 2025 EPFL

To promote research and education in cyber-defence, EPFL and the Cyber-Defence (CYD) Campus launched a rolling call for Master Thesis Fellowships – A Talent Program for Cyber-Defence Research.
This month we introduce you to Christoph Landolt, a CYD Master Thesis Fellowship recipient, who is finishing up his Master Thesis in the Institute for Computational Engineering Eastern Switzerland University of Applied Sciences - OST.

  • How did you find out about the CYD Fellowships and what motivated you to apply ?

I was introduced to the Cyber-Defence Campus in 2023 during my military service, when I participated in a cybersecurity training focusing on aviation systems. A presentation on CYD's research projects and their innovative approach to tackling cybersecurity challenges deeply inspired me. Their work resonated with my interest in integrating machine learning with cybersecurity, prompting me to attend their conference later that year. It was there that I learned about the CYD fellowship programs and submitted a project proposal, which was fortunately accepted.

  • What was your CYD Fellowship project about?

During my bachelor's studies, I developed a strong interest in combining cyber security and machine learning to detect attacks in network traffic, which led me to focus my bachelor's thesis on detecting attacks in HTTP traffic. In this project, I realized that such models primarily map the distribution of existing data and, therefore, act as static defenders that struggle to reliably identify novel attack patterns.

To address this limitation, my master thesis focuses on modeling the defence of computer networks as a game between attackers and defenders, using multi-agent reinforcement learning to capture these dynamics. This approach enables the development of autonomous cyber agents capable of responding more quickly and effectively to emerging attack patterns, thereby enhancing the long-term security of computer networks.

  • What were the advantages of conducting your master thesis project at the CYD Campus?

The CYD Campus offers an active community of students and researchers in machine learning and computer science. The collaboration and exchange with these specialists is exciting and helpful for developing new ideas and exchanging information about the ongoing research. In addition, the cooperation with the CYD experts makes it possible to receive excellent supervision while working on your master's thesis.

  • Did you as a child dream of working in cyber-defence?

As a child, I had no idea it was even possible to work in this field. I dreamed of becoming a farmer or a forester—anything that would let me work outdoors. It wasn’t until a school project where we had to program a website that I discovered how much fun working in IT could be and how creative it actually is. From that moment on, I was hooked on computers, and they’ve been a constant part of my life ever since.

  • What is driving you to pursue research in cyber-defence?

When people entrust IT services with their personal data, we as developers have a responsibility to ensure these services are secure. However, this task is becoming increasingly challenging due to the activities of criminal organizations and state actors. Through my work, I strive to contribute to building user trust in our services and enhancing the protection of IT systems. Additionally, the innovative and fast-paced nature of this field makes it both highly rewarding and incredibly exciting!

  • What is the most important lesson you have learned in your scientific career so far?

The most valuable lesson I’ve learned, and one of the aspects I enjoy most about cybersecurity research, is the importance of helping others and actively seeking support. By collaborating and exchanging ideas, not only can you achieve highly productive outcomes, but you also gain
a wealth of new knowledge along the way. I’ve also discovered that the CYD community is incredibly supportive and helpful, which has a profoundly positive impact on both the quality of my work and my personal growth.

  • What are you most proud of in your career to date?

One of the things I value most is the opportunity to contribute to a team and see a project reach a positive outcome. I feel a deep sense of gratitude when I reflect on the successful projects I’ve been a part of—whether during my studies, in my professional career, or through my work in the active reserve of the Swiss Army. These achievements were always the result of teamwork and collaboration, which makes them even more meaningful. That said, what excites me even more than looking back is the anticipation of tackling the next project and embracing the challenges it will bring.

  • Outside the lab, what do you enjoy doing most?

I have a deep love for spending time in nature, whether it’s in the mountains or on the water. During the summer, I often find myself sailing or kite surfing on the lake, while in the winter, I enjoy skiing in the mountains.

  • What were your expectations about the CYD Fellowships?

I was genuinely excited about my time at the CYD Campus because it offered the chance to dive into fascinating research that aligns closely with my personal interests. The incredibly supportive and collaborative community there not only met but exceeded my expectations.

  • Could you share some tips with future applicants who are considering applying for the CYD Fellowships?

I highly recommend applying for a CYD Fellowship to anyone looking to make an impact in cybersecurity research. It’s helpful to explore CYD's projects, develop your own ideas, and refine them by discussing with previous fellows, peers, or your academic supervisor to ensure they’re practical for a thesis.