31 Katrina Tsipenyuk, Brian Chess, and Gary McGraw, “Seven Pernicious Kingdoms: a Taxonomy of
Software Security Errors,” IEEE Security and Privacy 6 (November–December 3, 2005).
32 Gary McGraw (Digital), “Software Security: Building Security In,” [website] (Herndon, VA).
33 Sam Weber, Paul A. Karger, and Amit Paradkar, “A Software Flaw Taxonomy: Aiming Tools at Security,”