Jeff Stapleton has 30 plus years' experience in the financial services industry with 25 years as a security professional involved in developing ANSI and ISO security standards including payments, cryptography, key management, public key infrastructures (PKI) and biometrics. Jeff earned his bachelor and master degrees in computer science from the Universities of Missouri in St. Louis (UMSL) and Rolla (UMR) and has taught information security at Washington University in St. Louis (WUSTL) and the University of Teas in San Antonio (UTSA). He has conducted security assessments of payment networks, financial institutions, and assisted in developing secure payment systems. He has authored numerous ISSA Journal articles, IEEE papers, and other periodicals. His book series Security without Obscurity is available from CRC Press.