NIST IR 7298 Revision 3 Glossary of Key Information Security Terms Celia Paulsen Robert Byers This publication is available free of charge from: https://doi.org/10.6028/ NIST.IR.7298r3 NISTIR 7298 Revision 3 Glossary of Key Information Security Terms Celia Paulsen Robert Byers Computer Security Division Information Technology Laboratory This publication is available free of charge from: https://doi.org/10.6028/ NIST.IR.7298r3 July 2019 U.S. Department of Commerce Wilbur L. Ross, Jr., Secretary National Institute of Standards and Technology Walter Copan, NIST Director and Under Secretary of Commerce for Standards and Technology i National Institute of Standards and Technology Int eragency or Internal Report 7298 Revision 3 11 pages ( July 2019) This publication is available free of charge from: https://doi.org/10.6028/ NIST.IR.7298r3 Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by NIST, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. There may be references in this publication to other publications currently under development by NIST in accordance with its assigned statutory responsibilities. The information in this publication, including concepts and methodologies, may be u sed by f ederal agencies even before the completion of such companion publications. Thus, until each publication is completed, current requirements, guideline s, and procedures, where they exist, remain operative. For planning and transition purposes, f edera l agencies may wish to closely follow the development of these new publications by NIST. Organizations are encouraged to review all draft publications during public comment periods and provide feedback to NIST. Many NIST cybersecurity publications , ot her than the ones noted above, are available at https://csrc.nist.gov/publications . Comments on this publication may be submitted to: National Institute of Standards and Technology Attn: Computer Security Division, Information Technology Laboratory 100 Bureau Drive (Mail Stop 8930) Gaithersburg, MD 20899 -8930 Email: secglossary@nist.gov All comments are subject to release under the Freedom of Information Act (FOIA). NISTIR 7298 REV. 3 GLOSSARY OF KEY INFORMATION SECURITY TERMS ii This publication is available free of charge from: http s://doi.org/10.6028/ NIST.IR.7298r3 Reports on Computer Systems Technology The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public welfare by providing technical leadership for the Nation’s measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analyses to advance the development and productive use of information technology. ITL’s responsibilities include the development of management, administrative, technical, and physical standards and guidelines for the cost -effective security and privacy of other than national s ecurity -related information in f ederal informa tion systems. Abstract This publication describes an online glossary of terms used in National Institute of Standards and Technology ( NIST ) and Committee on National Security Systems ( CNSS ) publications . This glossary utilizes a database of terms extracted from NIST Federal Information Processing Standard Publication s (FIPS), the NIST Special Publication (SP) 800 series, select NIST Interagency or Internal Reports (NISTIRs), and from the Committee for National Security Systems Instruction 4009 (CNSSI -4009). Keywords cybersecurity; definitio