Biographical Sketch: Joe Castillo has been a technical IT Auditor for multiple banks since 1990. He has primarily performed technical reviews of the IBM mainframe environment including MVS/zOS, CICS, CA Top Secret, IBM RACF and MegaCryption. In addition, Joe has performed technical reviews of TANDEM HP, IBM AS400 and UNIX OS platforms, as well as audits of Diebold ATM networks, STAR and VISA PIN Security reviews. Joe is CISA and CTGA certified allowing him to review ATMs for compliance with STAR/VISA ATM network guidelines. He has also worked on the IT side starting as a Computer Operator in 1979, and progressing to Data Control Technician, Programmer, Sr. Programmer/Analyst and Quality Assurance Director, all on the IBM mainframe environment. He has given history related presentations to various historical and community organizations. In addition, Joe is a credentialed teacher and taught computer and math courses for three years at a private high school.