experts and translators of the new domain


Specializing in National Security, Cybersecurity, and Privacy Law

Paul Rosenzweig practices law in a solo practice in Washington, DC, specializing in legal issues relating to national security and homeland security, with an emphasis on cybersecurity and privacy law. He is also the founder of Red Branch Consulting PLLC, a homeland security and cybersecurity consulting company, and a Senior Advisor to The Chertoff Group. Mr. Rosenzweig formerly served as Deputy Assistant Secretary for Policy in the Department of Homeland Security. In August 2023 he was designated as a Special Advocate for the Data Protection Review Court.

He is currently a Professorial Lecturer in Law at George Washington University, and a Senior Fellow in the Tech, Law & Security Program at the American University, Washington College of Law. He also serves as an advisor to and former member of the American Bar Association Standing Committee on Law and National Security, and a Contributing Editor of the Lawfare blog. He is a member of the ABA President’s Task Force on Law and Artificial Intelligence, and the ABA Cybersecurity Legal Task Force. He is also a member of the United States Court of Appeals for the District of Columbia Circuit Advisory Committee on Admissions and Grievances, and he serves as a Hearing Committee Member of the District of Columbia Board of Professional Responsibility. In 2011 he was a Carnegie Fellow in National Security Journalism at the Medill School of Journalism, Northwestern University.

Mr. Rosenzweig is a cum laude graduate of the University of Chicago Law School. He has an M.S. in Chemical Oceanography from the Scripps Institution of Oceanography, University of California at San Diego and a B.A from Haverford College. Following graduation from law school he served as a law clerk to the Honorable R. Lanier Anderson, III of the United States Court of Appeals for the Eleventh Circuit.

He is the author of Cyber Warfare: How Conflicts in Cyberspace are Challenging America and Changing the World and of three video lecture series from The Great Courses, Thinking About Cybersecurity: From Cyber Crime to Cyber Warfare; The Surveillance State: Big Data, Freedom, and You; and Investigating American Presidents.

He is the coauthor (with James Jay Carafano) of Winning the Long War: Lessons from the Cold War for Defeating Terrorism and Preserving Freedom and co-editor (with Timothy McNulty and Ellen Shearer) of two books, Whistleblowers, Leaks and the Media: The First Amendment and National Security, and National Security Law in the News: A Guide for Journalists, Scholars, and Policymakers. He is also a member of the Literary Society of Washington.