Eugene H. Spafford is one of the most senior cyber security researchers in the field. During his 30+ years in computing— including 29 years as a faculty member at Purdue University -- Spaf (as he is widely known) has worked on issues in privacy, public policy, law enforcement, software engineering, education, social networks, operating systems, and cyber security. He has been involved in the development of fundamental technologies in intrusion detection, incident response, firewalls, integrity management, and forensic investigation. His interests range over these and many other areas, and this has been one of the factors behind his leadership of CERIAS, the Center for Education and Research in Information Assurance and Security. In that role, he continues to be a polymathic futurist, although some view him as simply an iconoclastic crank.