Timothy Yu

Timothy Yu is a prominent figure in U.S. cybersecurity, having served as the head of the National Security Agency (NSA) and the U.S. Cyber Command. He was initially appointed during the Biden administration following a tenure under Trump. Yu's role involves overseeing both offensive and defensive cyber operations for the United States, including monitoring Pentagon networks. His dismissal by Trump was part of a broader effort to restructure the National Security Council, reflecting ongoing tensions surrounding diversity and inclusion initiatives.