Guillermo Christensen is a partner at K&L Gates and co-chair of the firm’s AI Solutions Group, focusing his practice on national security law, artificial intelligence, cybersecurity, export controls, sanctions, and CFIUS reviews of mergers, acquisitions, and investments. Before entering the legal profession, he spent 15 years as a CIA intelligence officer and served as a diplomat with the U.S. Mission to the OECD in France, experience that now informs his counsel to clients navigating enterprise risk, ransomware incidents, and complex cross-border matters, including those involving China, Russia, and the Middle East. An immigrant from Argentina, he has lived and worked across Latin America, Africa, the Middle East, and Europe, and is a life member of the Council on Foreign Relations. Guillermo also teaches “AI Skills for Lawyers” as an adjunct professor at Georgetown University Law Center and trains cybersecurity leaders as an instructor at the FBI’s CISO Academy in Quantico. His work has earned recognition from The Best Lawyers in America®, Lawdragon’s 500 Leading Global Cyber Lawyers, and the Tortora Brayda Institute, which named him a Distinguished Fellow in AI and Cybersecurity in 2025.
