Preserving authorized restrictions on information access and disclosure, including means for protecting personal privacy and proprietary information.
Sources:
FIPS 200 under CONFIDENTIALITY from 44 U.S.C., Sec. 3542
CNSSI 4009-2015 from 44 U.S.C., Sec. 3542
NIST SP 800-137 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-172 from 44 U.S.C., Sec. 3552
NIST SP 800-172A from 44 U.S.C., Sec. 3552
NIST SP 800-18 Rev. 1 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-30 Rev. 1 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-37 Rev. 2 from 44 U.S.C., Sec. 3552
NIST SP 800-39 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-53 Rev. 5 from PL 113-283 (FISMA)
NIST SP 800-53A Rev. 5 from PL 113-283 (FISMA)
NIST SP 800-53B from PL 113-283 (FISMA)
NIST SP 800-60 Vol. 1 Rev. 1 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-60 Vol. 2 Rev. 1 under Confidentiality from 44 U.S.C., Sec. 3542
NIST SP 800-82r3 under Confidentiality from 44 U.S.C., Sec. 3552 - adapted
NIST SP 800-171 Rev. 2 from 44 U.S.C., Sec. 3552
NIST IR 8323r1 from FIPS 200
NIST IR 8401 from FIPS 200
NIST IR 8441 from FIPS 200
NIST Privacy Framework Version 1.0 under Confidentiality from 44 U.S.C., Sec. 3542
NISTIR 7497 under Confidentiality from 44 U.S.C., Sec. 3542
NISTIR 7621 Rev. 1 under Confidentiality from 44 U.S.C., Sec. 3542

  “Preserving authorized restrictions on information access and disclosure, including means for protecting personal privacy and proprietary information.”
Sources:
NIST SP 800-122 under Confidentiality from 44 U.S.C., Sec. 3542

  The term 'confidentiality' means preserving authorized restrictions on access and disclosure, including means for protecting personal privacy and proprietary information.
Sources:
NIST SP 800-59 under Confidentiality from 44 U.S.C., Sec. 3542 (b)(1)(B)

  The ability to protect data so that unauthorized parties cannot view the data.
Sources:
NIST SP 800-113 under Confidentiality

  The property that sensitive information is not disclosed to unauthorized entities.
Sources:
NIST SP 800-152 under Confidentiality
NIST SP 800-56B Rev. 2 under Confidentiality
NIST SP 800-57 Part 2 Rev.1 under Confidentiality

  the assurance that information is not disclosed to unauthorized individualsor processes.
Sources:
NIST SP 800-16 under Confidentiality

  The property that sensitive information is not disclosed to unauthorized entities (i.e., the secrecy of key information is maintained).
Sources:
NIST SP 800-175B Rev. 1 under Confidentiality

  The property that sensitive information is not disclosed to unauthorized entities (e.g., the secrecy of the key information is maintained).
Sources:
NIST SP 800-57 Part 1 Rev. 5 under Confidentiality

  Data confidentiality is a property of data, usually resulting from legislative measures, which prevents it from unauthorized disclosure.
Sources:
NIST SP 800-188 from OECD Glossary of Statistical Terms

  The property that data or information is not made available or disclosed to unauthorized persons or processes.
Sources:
NIST SP 800-66r2 from HIPAA Security Rule - §164.304

  The state that exists when information is held in confidence and protected from unauthorized disclosure.
Sources:
NISTIR 4734 under Confidentiality

  Assurance that information is not disclosed to unauthorized persons, processes, or devices. Confidentiality covers data in storage, during processing, and in transit.
Sources:
NISTIR 7316 under Confidentiality

  measures the attacker’s ability to obtain unauthorized access to information from an application or system.
Sources:
NISTIR 7946 under Confidentiality