Jonathan Reiber is a writer and security strategist based in Oakland, California. From serving in senior positions in the Department of Defense in Barack Obama’s administration to leading cybersecurity strategy for companies in Silicon Valley, his work focuses on building resilience to socio-political disruptions. He advises governments and organizations on the risks of digitization—from online extremism to influence operations to cybersecurity—and the political, policy, and technical solutions required to mitigate them.

A former Chief Strategy Officer for Cyber Policy in the Office of the Secretary of Defense, Jonathan has served as Special Assistant and Speechwriter to the United States’ Deputy Secretary of Defense, Dr. Ashton B. Carter, and previously as Special Assistant to the United States' Principal Deputy Under Secretary of Defense for Policy, Dr. James N. Miller. In both positions he focused his work on foreign and defense policy, strategy, Middle East and Asia-Pacific affairs, and cybersecurity. He campaigned full-time for Barack Obama in 2007-2008.

Prior to U.S. government service, he worked for the United Nations Peacekeeping Mission in Sudan, as a Research Manager at a geological intelligence firm, and as a political and communications advisor to the Episcopal Church. He is a graduate of Middlebury College, where he studied religion and creative writing, and The Fletcher School of Law and Diplomacy, where he studied International Security Policy and U.S. Diplomatic History and served as Editor-in-Chief of The Fletcher Forum of World Affairs.