Carl E. Landwehr is an American computer scientist whose research focus is cybersecurity and trustworthy computing. His work has addressed the identification of software vulnerabilities toward high assurance software development, architectures for intrusion-tolerant and multilevel security systems, token-based authentication, and system evaluation and certification methods. In an invited essay for ACSAC 2013, he proposed the idea of developing building codes for building software that is used in critical infrastructures. He has organized an NSF funded workshop to develop a building code and research agenda for medical device software security. The final committee report is available through the Cyber Security and Policy Institute of the George Washington University, and the building code t