John Ortiz is currently a senior computer engineering consultant for Harris/Crucial Security Inc. working as a reverse exploit engineer. In this position, he develops and analyzes vulnerabilities and exploits for various software. Prior to working at Crucial, he spent 5 years at SRA International and 5 years at General Dynamics developing various defense related software, researching data hiding techniques, and analyzing malware.

In a second role, Mr. Ortiz developed and teaches a Steganography course for the University of Texas at San Antonio (UTSA). It covers a broad spectrum of data hiding techniques in both the spatial and transform domains including least significant bit, discrete cosine transform, echo hiding, hiding in executables, and hiding in network protocols. For the course, Mr. Ortiz developed several steganographic programs for testing and analysis.

Mr. Ortiz holds two master's degrees from the Air Force Institute of Technology, one in Electrical Engineering and one in Computer Engineering and a BSEE from Rose-Hulman Institute of Technology.

My email address (stego@satx.rr.com) is available for public dissemination. I do not have twitter or facebook.