Meet our Experts

The ISAO Standards Organization is led by experts from The University of Texas at San Antonio and LMI. Our executive team has decades of leadership experience in the public and private sectors.

All of our experts are available for interviews or speaking engagements. Please contact Gina Garza or Julina Macy for more information about scheduling a conversation with our team.

Dr. Greg White, Executive Director

Dr. Gregory White is the Executive Director of the ISAO Standards Organization. He also serves as the Director of the Center for Infrastructure Assurance and Security (CIAS) and is a Professor of Computer Science at The University of Texas at San Antonio (UTSA). He spent 30 years with the Air Force and Air Force Reserves and has been involved in computer and network security since 1986.

Allen D. Shreffler, Deputy Director

Allen Shreffler is the Deputy Director of the ISAO Standards Organization and is also a Senior Cybersecurity consultant for LMI. He is a former career Army Military Intelligence Officer serving 32 years culminating as the G2 Director of Intelligence, Army Network Enterprise Technology Command (NETCOM).  Allen led the NETCOM threat intelligence production, cyber threat situational awareness, identification of critical infrastructure and cyber key terrain for elevated protection to defeat cyber threats against Army networks.

Natalie Sjelin, Director of Support

Natalie Sjelin is the Director of Support for the ISAO Standards Organization and serves as the associate director of training for the Center for Infrastructure Assurance and Security (CIAS) at The University of Texas San Antonio. In her role as Director of Support, she leads the development of the ISAO SO’s Support Group to assist ISAOs in their overall development and to assist ISAOs to hone their capabilities and services. In addition, Sjelin plays a significant role in the National Cyber Preparedness Consortium (NCPC) initiatives to design and deliver cybersecurity training for the nation.

Marlis Cook, Director of Lifecycle Management

Marlis Cook is the Lifecycle Management Director of the ISAO Standards Organization and is also a Senior Cybersecurity consultant for LMI. She has 30 years of experience planning, managing and directing information technology implementations, operations and support for the highest levels of the Department of Defense (DOD) and international military organizations, and has a strong understanding of program management and business management practices gained while serving in the U.S. Air Force. She has a Master’s degree in Information Technology and holds both CISSP and PMP certifications.

Year in Review

The ISAO Standards Organization publishes an Annual Report to recap the progress and growth of the information sharing ecosystem. These reports cover a variety of information about the efforts of the executive team, working groups, and community at large. We encourage you to review the archive of annual report below to learn more about the ISAO SO.

Image Library

Images are provided by the ISAO Standards Organization for use by media outlets. Left-click on an image to enlarge it. Click here to download all images.

Media Contacts

For interview requests or media requests, please contact a member of our communications team.

Newsletter & Social Media

Join our newsletter or follow us on Twitter or LinkedIn to stay informed of upcoming events, new resources, publications, and other ISAO SO announcements.

 Subscribe to our Newsletter
 Follow us on Twitter at @isao_so
 Connect with us on LinkedIn