Sean Barnum is an Information Security Principal at The MITRE Corporation where he acts as a senior advisor to US government and industry, often acting as technical architect and community leader for various information security knowledge structuring efforts including STIX, CybOX, TAXII, CAPEC, MAEC, CWE, and SAFES among others. He has a broad base of over 25 years of experience in the software & 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 AddisonWesley.