John has over 30 years of experience in the aerospace industry as a software developer, systems administrator, systems integrator, and systems security engineer. John is a retired U.S. Navy Commander where he served as an Information Corps Warfare Qualified officer. John currently serves as an adjunct faculty member at a local community college, teaching courses in ethical hacking, Linux operating system, and computer forensics. He has also served as a mentor instructor for SANS. A graduate of New York Maritime College and Azusa Pacific University, he holds a BS in Computer Science and an MS in Applied Computer Science and Technical Programming. He holds the GSLC, GXPN, GWAPT, GCIH, GCFE, GPEN, GSEC, and CISSP certifications and the Penetration Testing & Ethical Hacking certificate from the SANS Technology Institute. John is excited and honored to help others further their careers in cybersecurity.