Marianne Bailey is a partner at Guidehouse who leads the Advanced Solutions Cybersecurity practice to provide strategies and solutions that enable Guidehouse clients to manage their cybersecurity risks.

Marianne brings over 35 years of experience across the Department of Defense (DoD), Intelligence community and civil government sectors. She served as Deputy National Manager for National Security Systems (NSS) and Senior Cybersecurity Executive for the National Security Agency, where she was directly responsible for the protection of the national security system for the nation. She also served as both Principal Deputy for Cybersecurity and Deputy Chief Information Security Officer (DCISO), Department of Defense, CIO. She received the Distinguished Executive Presidential Rank Award, the highest government civilian recognition, for her contributions to national security. Marianne has led U.S. cyber policy and technology issues internationally and is well known for her global leadership in cyber.