Tom Olzak is a security researcher and contributor for the InfoSec Institute and an IT professional with over 27 years of experience in programming, network engineering and security. He has an MBA as well as CISSP and MCSE certifications. He is currently an online instructor for the University of Phoenix. He has held positions as an IS director, director of infrastructure engineering, director of information security, and programming manager at a variety of manufacturing, health care, and distribution companies.