National Security Agency
Definition/Scope: (JP 2-0) The National Security Agency is a cryptologic intelligence agency of the United States government, administered as part of the United States Department of Defense. It is responsible for the collection and analysis of foreign communications and foreign signals intelligence, which involves a significant amount of cryptanalysis. It is also responsible for protecting U.S. government communications and information systems from similar agencies elsewhere, which involves a significant amount of cryptography. The NSA has recently been directed to help monitor U.S. federal agency computer networks to protect them against attacks. NSA’s work is limited to communications intelligence and not field or human intelligence activities. By law the NSA’s intelligence gathering is limited to foreign communications, but its work includes some domestic surveillance. The mission of the National Security Agency/ Central Security Service is to lead the defense community in delivering responsive, reliable, effective, and expert Signals Intelligence and Information Assurance products and services, and enables Network Warfare operations to gain a decisive information advantage for the Nation and our allies under all circumstances.
Used For:National Security Agency/Central Security Service
Broader Terms:Department of Defense
Narrower Terms:Data Encryption Standard
Related Terms:Central Intelligence Agency