Siegfried is the head of department Secure Software Engineering at Fraunhofer SIT (Germany) and his main research focus is on applied software security. He has received a PhD, master's degree and bachelor's degree in computer science and IT-security. He is the founder of the CodeInspect reverse engineering tool and founded TeamSIK. During his research, he develops tools that combine static and dynamic code analysis for security purposes. Most of his research is published at top tier academic conferences and industry conferences like DEF CON, BlackHat, AVAR or VirusBulletin.