Jeanette J. McMillian is Vice President, Associate General Counsel at Exiger and a Fellow with the National Security Institute (NSI) at George Mason University’s Antonin Scalia Law School. A former Senior National Intelligence Officer, she brings more than 20 years of Intelligence Community (IC) experience in national security law, supply chain security, and intelligence oversight.

At Exiger, Ms. McMillian serves on the in-house legal team, supporting contract reviews, product demonstrations, and policy coordination. Exiger is an AI-powered supply chain company whose 1ExigerAi platform helps more than 550 customers, including over 60 government organizations, map sub-tier suppliers, continuously monitor risk, and strengthen the security and resilience of critical supply chains.

Ms. McMillian also teaches as a Professor in the TEACH Cyber + AI Clinic, an experiential program of NSI’s Cyber and Technology Center open to George Mason University Law students and Howard University School of Business students. Students study the legal, policy, and technical foundations of cybersecurity, data privacy, and AI, then deliver no-cost cyber risk assessments and compliance guidance to under-resourced non-profits, schools, healthcare facilities, local governments, and small businesses.

Prior to her retirement from the IC, Ms. McMillian served as Assistant Director of the Supply Chain and Cyber Directorate at the National Counterintelligence and Security Center (NCSC), within the Office of the Director of National Intelligence (ODNI). She led strategic interagency programs and National Security Council initiatives to secure federal cyber domains and supply chains. Working closely with the Departments of Homeland Security and Defense, she advanced supply chain security as a core element of national defense, counterintelligence, and cybersecurity strategies. She received the Presidential Rank Award during her tenure at NCSC.

Before NCSC, Ms. McMillian served as Acting Deputy Inspector General of the Intelligence Community (IC IG), while continuing to serve as its General Counsel, after holding leadership roles in the IC IG office since 2010. She was instrumental in developing the legislation that created the IC IG. She supervised independent audits, inspections, investigations, and reviews; led the office’s legal staff and served as liaison to Congress; and chaired both the Deputy Inspectors General Committee and the Counsels Committee of the IC IG Forum. She has also taught law enforcement officers at the Federal Law Enforcement Training Center on Fourth and Fifth Amendment issues, civil investigations, and whistleblower protections.

Ms. McMillian began her career in the Intelligence Community immediately after law school, joining the Central Intelligence Agency’s Office of General Counsel as an Honors Attorney. Serving there during the September 11th attacks solidified her lifelong commitment to national security. As an Assistant General Counsel, she helped lay the legal groundwork for the National Counterterrorism Center and the ODNI.

Ms. McMillian holds a Bachelor of Arts in Political Science from Howard University and a Juris Doctorate from Washington University School of Law.

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