Cybersecurity researcher and offensive security expert with a passion for AI security, fuzzing, and reverse engineering. Over the years, he has contributed to numerous projects, including ChatNMI, an open-source initiative for home-based AI deployment; libfiowrapper, a library for fuzzing applications that read from files; and rtaint, a reverse tainting tool designed for crash analysis. His past work also includes large-scale fuzzing infrastructure for Samsung Android devices, penetration testing frameworks, and in-depth research on in-memory fuzzing techniques.
As a frequent speaker at top cybersecurity conferences, Marek has presented at DefCamp, SecTor, hardwear.io, Confidence, The Hack Summit, and BlueHat, among others. His talks explore topics such as AI-powered attacks, integrating LLMs with legacy hardware, modern fuzzing techniques, and securing open-source components. He has also co-authored multiple publications, including contributions to “Modern Fuzzing” and technical deep dives on AI security.