Corey developed collaborative tools that compiled and edited computer security training materials for the Department of Defense and the National Institute of Standards. His tools were subsequently adopted throughout the federal government. Also, under his leadership, the Information Systems program was designated the National Center of Excellence in Information Assurance Education. Currently, he is serving as the Chair of the Colloquium for Information Systems Security Education, an organization that provides a forum for the exchange of information between leaders in government, industry, and academia.

Corey also designs and develops management information and training systems for a wide range of organizations. He is currently working closely with senior management at Apple Computer, Microsoft, United Airlines, and several other major corporations.

Additionally, Corey has led Idaho State University to a position of prominence in information assurance. In 2003, he was appointed the University Professor of Informatics, and he has been selected as the researcher of the year twice by his college. Corey is also the editor of two journals, and is the information assurance series editor for a major publisher.