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  1. National Security Agency | Central Security Service

    NSA provides foreign signals intelligence (SIGINT) to our nation's policymakers and military forces. SIGINT plays a vital role in our national security by providing America's leaders with critical …

  2. National Security Agency - Wikipedia

    The NSA is responsible for global monitoring, collection, and processing of information and data for global intelligence and counterintelligence purposes, specializing in a discipline known as signals …

  3. National Security Agency (NSA) | USAGov

    The National Security Agency (NSA) protects national security systems and information.

  4. National Security Agency (NSA) - Encyclopedia Britannica

    Dec 22, 2025 · National Security Agency (NSA), U.S. intelligence agency within the Department of Defense that is responsible for cryptographic and communications intelligence and security.

  5. National Security Agency - Intelligence.gov

    The Central Security Service (CSS), part of NSA, provides timely and accurate cryptologic support, knowledge, and assistance to the military cryptologic community. CSS coordinates and develops …

  6. What is the NSA and how does it work? - TechTarget

    Feb 28, 2025 · Learn how the National Security Agency (NSA) works to protect American interests, as well as its responsibilities, programs, history, controversies and more.

  7. National Security Agency - Wikiwand

    The National Security Agency (NSA) is an intelligence agency of the United States Department of Defense, under the authority of the director of national intelli...

  8. National Security Agency - LinkedIn

    NSA is at the forefront of U.S. government cryptology, integrating signals intelligence (SIGINT) and cybersecurity to enhance national and allied advantages. Our mission encompasses computer ...

  9. U.S. Intelligence Community careers - About NSA

    What does the NSA do? The National Security Agency leads the U.S. government in cryptology that encompasses both signals intelligence (SIGINT) insights, cybersecurity products and services and …

  10. Potential NSA, Cyber Command leader nomination transmitted to Senate

    Dec 16, 2025 · The signals intelligence titan and combatant command have been without a permanent leader for months since far-right activist Laura Loomer pushed for the firing of Gen. Timothy Haugh …