U.S. flag   An official website of the United States government
Dot gov

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

Https

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

Glossary

A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  J  |  K  |  L  |  M  |  N  |  O  |  P  |  Q  |  R  |  S  |  T  |  U  |  V  |  W  |  X  |  Y  |  Z

Glossary terms and definitions last updated: May 17, 2022

This Glossary consists of terms and definitions extracted verbatim from NIST's cybersecurity- and privacy-related Federal Information Processing Standards (FIPS), NIST Special Publications (SPs), and NIST Internal/Interagency Reports (IRs), as well as from Committee on National Security Systems (CNSS) Instruction CNSSI-4009. Only terms that are defined in final publications—not drafts—are included here.

  • Multiple definitions. Some terms have multiple definitions. Terminology changes over time, and may differ based on the topic being addressed. Always refer to the source publication for the authoritative term and definition, and to see that information in its proper context.
  • Inclusive language. We recognize that some NIST publications contain potentially biased terminology. As we revise publications, we are reviewing and editing that language based on NIST’s inclusive language guidance. New publications in development will also follow that guidance.

The Glossary may be expanded to include relevant terms in external or supplemental sources, such as applicable laws and regulations. Recommendations for publications to be considered by NIST can be sent to secglossary@nist.gov. HOWEVER, terms without a source publication will not be independently added to this Glossary.

See NISTIR 7298 Rev. 3 for additional details about this Glossary.

A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  J  |  K  |  L  |  M  |  N  |  O  |  P  |  Q  |  R  |  S  |  T  |  U  |  V  |  W  |  X  |  Y  |  Z
Showing 431 matching records.
e
E3
EA
EAC
EAL
EAN
EAP
EAS
EC
EC2
ECA
ECB
ECC
ECM
ECP
ECU
EDI
EDR
EE
E-E
EEA
EFD
EFI
EFS
EFT
EHR
ei
EIA
EIK
EIR
EIT
EKU
EL
EM
EMC
EMI
EMM
EMP
EMS
EMT
eNB
ENS
EO
EOF
EPA
EPC
EPL
EPP
EPS
EPT
ER
ERC
ERD
ERM
ERP
ERR
ERT
ESM
ESN
ESP
ESS
ETA
ETC
ETH
EV
EVM

* "Relevance" merely indicates the search engine's score for a document. It is based on the search parameters and information in the document's detailed record.