Brock is counsel and Head of U.S. Fintech in the Washington, D.C. and Silicon Valley offices of Freshfields, where he focuses on the intersections between cybersecurity, national security, and technology law. Previously the Deputy General Counsel for Operations at the NSA, Brock advised the NSA’s leadership on how to achieve their mission objectives within the boundaries of state, federal, and international cyber, privacy, and national security laws. Prior to serving at the NSA, Brock held several positions at the U.S. Department of Treasury in Baghdad and on the Afghanistan Interagency Operations Group. Brock has authored pieces and often speaks publicly on legal strategy regarding a variety of national security, cybersecurity, crypto, and fintech topics. He has also authored a fiction novel set in pre-civil war Lebanon, titled The Third Force.