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Michael Sieber

Senior Director, Cybersecurity, Defense Market, Federal Services

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Col. Michael Sieber (U.S. Army, Ret.) leads Maximus security programs for mission-critical defense IT systems, applications, and data. Prior to joining Maximus, Michael 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.

Michael Sieber's Insights
Article | Dec 18, 2023

Roadmapping to optimize defense modernization

As the cyber threat landscape grows increasingly sophisticated, the Department of Defense and its industry partners need strategic roadmaps to achieve digital modernization goals while maintaining a strong yet flexible cyber posture.

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Article | Nov 13, 2023

Striking the balance: mission access and cybersecurity in cloud environments

Managing sensitive data in the cloud can be a security concern for the Defense Department, but a smart cloud security strategy can help DoD get ahead of potential vulnerabilities.

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Article | Oct 18, 2023

How cyber threat intelligence can strengthen DoD’s cyber posture

As bad cyber actors across the globe continue to target defense networks, cyber threat intelligence is critical for improving the cyber posture of the Department of Defense.

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