Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

System and Network Security Acronyms and Abbreviations



Karen A. Scarfone, Victoria Thompson


This report contains a list of selected acronyms and abbreviations for system and network security terms with their generally accepted or preferred definitions. It is intended as a resource for Federal agencies and other users of system and network security publications.
NIST Interagency/Internal Report (NISTIR) - 7581
Report Number


network security, system security


Scarfone, K. and Thompson, V. (2009), System and Network Security Acronyms and Abbreviations, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 15, 2024)
Created September 30, 2009, Updated November 10, 2018