Elizabeth Neumann is a national security expert who served as Assistant Secretary for Counterterrorism and Threat Prevention at the U.S. Department of Homeland Security. She has worked across administrations on issues including domestic terrorism, violent extremism, and disaster preparedness. Neumann has been a vocal advocate for addressing homegrown extremism and improving threat detection. In the private sector, she consults on security policy, risk assessment, and organizational resilience. She frequently appears in media and congressional testimony to discuss security threats and policy reforms.