Sebastian is a malware researcher and security teacher. His PhD was on the detection of botnets by analyzing their network traffic and creating behavioral models of their actions. He likes to analyze network patterns with machine learning, especially on malware traffic. He is a researcher in the ATG group of the Czech Technical University in Prague. He believes that free software and machine learning tools can help better protect users from the abuse of their digital rights. He taught in several countries and Universities and worked on penetration testing for both corporations and governments. As a co-founder of the MatesLab hackspace he is a free software advocate who worked on honeypots, distributed scanning (dnmap) keystroke dynamics, bluetooth analysis, privacy protection, intruder detection, robotics and biohacking. At CTU University he manages the Stratosphere IPS project, where they are developing a free-software behavioral-based IPS.