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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 - Intelligence.gov

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

  5. 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.

  6. National Security Agency (NSA) - Encyclopedia Britannica

    Nov 29, 2025 · National Security Agency (NSA), U.S. intelligence agency within the Department of Defense that is responsible for cryptographic and communications intelligence and security.

  7. 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 …

  8. National Security Agency – Wikipédia

    Az NSA kémkedett olyan befolyásos moszlim személyek magánélete (például a pornográfia használata az interneten) iránt is, akikkel szemben semmiféle gyanú nem merült fel, pusztán a vallási vagy …

  9. National Security Agency | About NSA Mission

    NSA postures to prevent and eradicate threats and help the United States and its Allies defeat adversaries consistent with its authorities and with guidance from various national strategies.

  10. Contact NSA

    NSA offers several ways to contact the agency. For faster service, use the web form option. By mail: National Security Agency 9800 Savage Rd., Suite 6272 Fort George G. Meade, MD 20755-6000