U.S. Senate

Washington, D.C. — The U.S. Senate has confirmed Sean Cairncross as the next National Cyber Director, solidifying his position as President Trump’s chief advisor on national cybersecurity matters. The Senate approved Cairncross’s nomination on August 3, 2025, in a 59-35 vote—a decision that follows weeks of scrutiny regarding his technical background and vision for the country’s evolving cyber defense posture.