Greg Scheidel

Over a 30-year career, Greg has witnessed the evolution of enterprise technology, from early network and server engineering to modern cyber operations and leadership. After years in IT infrastructure and operations, he moved into security engineering and threat management, then led enterprise defense programs as Chief Cybersecurity Officer at Iron Vine Security. There he designed integrated defenses and matured SOC and IR capabilities across federal and private-sector environments. These lessons help students connect technical controls with organizational resilience, and help them see how design decisions play out in high-stakes environments.

Greg is a lifelong learner, and he believes strong defenders never stop studying how systems fail and recover. His certifications include the (ISC)2 PMP, CompTIA Network+, Server+, Security+, and ITIL Service Strategy credentials. He is also a faculty member of the SANS Technology Institute, which has been designated an NSA Center of Academic Excellence in Cyber Defense and is a multi-year winner of the National Cyber League competition. Greg has authored and presented widely on endpoint security, Zero Trust Architecture, and tactical monitoring, including the SANS white paper, “Back to the Future: What Will Endpoint IR Really Look Like?” as well as talks at AUSCERT 2024 and other industry events. He also contributed to the ECS 2025 Cybersecurity Report, a forward-looking analysis of emerging defense challenges.

In the classroom, Greg is known for his clarity and systems-focused thinking approach. Students praise his ability to link daily defensive tasks to strategic program objectives, helping them see how their work fits within broader mission goals. His students often remark that his guidance on communicating architecture decisions to leadership has become one of their most valuable professional skills. He teaches with one guiding belief: that great defenders see the entire ecosystem—technology, people, and processes—and understand how every decision shapes resilience. He reminds students that the best security architects are not just defenders; they are innovators who understand and support the business, question assumptions, and design with purpose. Outside of cybersecurity, Greg enjoys reading science fiction, playing racquetball, and spending time with his family, reminding learners that curiosity and balance are as essential to security as skill.

Qualifications Summary

• Chief Cyber Security Officer, Cyber Division, ECS
• Former Chief Cybersecurity Officer, Iron Vine Security
• SANS Certified Instructor of SEC530: Defensible Security Architecture and Engineering: Implementing Zero Trust for the Hybrid Enterprise
• 30+ years of IT and cybersecurity experience, from network engineering to executive leadership
• GIAC Certifications: GMON, GCED, GSLC, GSNA, GCIH, GSEC, GPEN
• CSXP Certified
• Faculty Member, SANS Technology Institute
• Contributor to CSX-P Exam Content Development
• Speaker at AUSCERT Cyber Security Conference