As a senior researcher at CESNET and an assistant professor at the Czech Technical University, I specialize in leveraging artificial intelligence to address complex challenges in cybersecurity. Over the years, I’ve contributed to numerous national and international security projects, delivering innovative solutions that help protect critical infrastructures and digital environments.
Passionate about mentoring and knowledge-sharing, I thrive in both academic and applied research settings, building bridges between theoretical insights and real-world applications. If you’re interested in AI, security, or collaborative research, I’d love to connect and discuss potential opportunities!
I am privileged to lead a team of talented researchers, pushing the boundaries of knowledge and driving impactful research that combines AI, machine learning, and network security. Together, we explore cutting-edge technologies to make digital spaces safer and more resilient.
All research works are listed on my google scholar page.
2024 - Koumar, Josef; Hynek, Karel; Pešek, Jaroslav; Čejka, Tomáš; ,NetTiSA: Extended IP flow with time-series features for universal bandwidth-constrained high-speed network traffic classification,Computer Networks,240,,110147,2024,Elsevier
2024 - Jerabek, Kamil; Hynek, Karel; Rysavy, Ondrej; ,Comparative analysis of DNS over HTTPS detectors,Computer Networks,247,,110452,2024,Elsevier
2024 - Luxemburk, Jan; Hynek, Karel; ,Towards reusable models in traffic classification,2024 8th Network Traffic Measurement and Analysis Conference (TMA),,,1-4,2024,IEEE
2024 - Hynek, Karel; Luxemburk, Jan; Pešek, Jaroslav; Čejka, Tomáš; Šiška, Pavel; CESNET-TLS-Year22: A year-spanning TLS network traffic dataset from backbone lines,Scientific Data,11,1,1156,2024,Nature Publishing Group UK London
2022-2025
VJ02010024 - Flow-based Encrypted Traffic Analysis,
Ministry of Interior of Czech Republic
2022-2025
OYCESNET20221 - CYBERTHREATS - Use of artificial intelligence for defence against cyber security attacks,
Ministry of Defence of Czech Republic
2020-2022
PRIVacy and homomorphIc encryption for artificiaL intelligence,
European Commission
Feel free to drop me an email if you’d like to collaborate, have questions about my research and work, or just want to connect!