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Computer Security Resource Center

Computer Security
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accrediting authority

Abbreviation(s) and Synonym(s):

Authorizing Official

Definition(s):

  A senior (federal) official or executive with the authority to formally assume responsibility for operating an information system at an acceptable level of risk to organizational operations (including mission, functions, image, or reputation), organizational assets, individuals, other organizations, and the Nation.
Source(s): NIST SP 800-128 under Authorizing Official
NIST SP 800-37 Rev. 1 under Authorizing Official
NIST SP 800-53 Rev. 4 under Authorizing Official
NIST SP 800-53A Rev. 4 under Authorizing Official

  Official with the authority to formally assume responsibility for operating an information system at an acceptable level of risk to agency operations (including mission, functions, image, or reputation), agency assets, or individuals.
Source(s): NIST SP 800-18 Rev. 1 under Authorizing Official

  Senior (federal) official or executive with the authority to formally assume responsibility for operating an information system at an acceptable level of risk to organizational operations (including mission, functions, image, or reputation), organizational assets, individuals, other organizations, and the Nation.
Source(s): NIST SP 800-30 Rev. 1 under Authorizing Official
NIST SP 800-39 under Authorizing Official

  Synonymous with designated accrediting authority (DAA). See also authorizing official. Rationale: The Risk Management Framework uses a new term to refer to this concept, and it is called authorizing official (AO).
Source(s): CNSSI 4009-2015 under accrediting authority

  See Authorizing Official.
Source(s): NIST SP 800-18 Rev. 1 under Accrediting Authority
NIST SP 800-60 Vol. 1 Rev. 1 under Accrediting Authority
NIST SP 800-60 Vol. 2 Rev. 1 under Accrediting Authority

  Official with the authority to formally assume responsibility for operating an information system at an acceptable level of risk to agency operations (including mission, functions, image, or reputation), agency assets, or individuals. Synonymous with Accreditation Authority.
Source(s): NIST SP 800-60 Vol. 1 Rev. 1 under Authorizing Official
NIST SP 800-60 Vol. 2 Rev. 1 under Authorizing Official

  Senior federal official or executive with the authority to formally assume responsibility for operating an information system at an acceptable level of risk to organizational operations (including mission, functions, image, or reputation), organizational assets, individuals, other organizations, and the Nation.
Source(s): NISTIR 7622 under Authorizing Official