Sean Barnum is an Information Security Principal at The MITRE Corporation where he acts as a senior advisor to the U.S. government and as a technical architect and community leader for various information security standardization efforts including STIX, CybOX, CAPEC, MAEC, CWE and SAFES among others. Barnum has a broad base of over 25 years of experience in the software and technology industry. He is a frequent contributor, speaker, trainer and author on information security topics. He is coauthor of the book “Software Security Engineering: A Guide for Project Managers”, published by Addison-Wesley. He is involved in the information security related standards efforts of ISO, OMG and IETF, among other international standards bodies.