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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 …

  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 …

  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. CSS coordinates …

  5. 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.

  6. CISA, NSA and Cyber Centre Warn Critical Infrastructure of …

    3 days ago · CISA, NSA and Cyber Centre Warn Critical Infrastructure of BRICKSTORM Malware Used by People’s Republic of China State-Sponsored Actors

  7. NSA has 2,000 fewer people now, meeting Trump-admin goal

    5 days ago · NSA has 2,000 fewer people now, meeting Trump-admin goal The exact size of the agency’s workforce is not publicly known, but a fact sheet distributed by Maryland last year put …

  8. 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.

  9. U.S. Intelligence Community careers - NSA

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

  10. National Security Advisor (United States) - Wikipedia

    The Assistant to the President for National Security Affairs (APNSA), commonly referred to as the National Security Advisor (NSA), [2][Note 1] is a senior aide in the Executive Office of the …