Cilluffo was a member of the Cyberspace Solarium Commission and the Department of Homeland Security’s Advisory Council, and he’s routinely called upon to advise senior officials in the executive branch, U.S. Armed Services, and state and local governments on an array of matters related to national and homeland security strategy and policy. In addition to briefing Congressional committees and their staffs, he has publicly testified before Congress on numerous occasions, serving as a subject matter expert on policies related to cyber threats, counterterrorism, security and deterrence, weapons proliferation, organized crime, intelligence and threat assessments, emergency management, and border and transportation security. Similarly, he works with U.S. allies and organizations such as NATO and Europol. He has presented at a number of bi-lateral and multi-lateral summits on cybersecurity and countering terrorism, including the U.N. Security Council.