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Michael Sieber

Senior Director, Cybersecurity, Defense Market, Federal Services

Col. Michael Sieber (U.S. Army, Ret.) leads Maximus security programs for mission-critical defense IT systems, applications, and data. Prior to joining Maximus, Mr. Sieber commanded the Army’s only active-duty information operations battalion, served as Chief Information Security Officer (CISO) in the Office of the DoD Deputy Chief Information Officer for Special Programs, and served as the Authorizing Official for accreditation and certification of multiple classified IT networks. He holds a Master of Science degree in Information Operations and Defense Analysis from the Naval Postgraduate School.