3.1.22

Discussion

In accordance with laws, Executive Orders, directives, policies, regulations, or standards, the public is not authorized access to nonpublic information (e.g., information protected under the Privacy Act, CUI, and proprietary information). This requirement addresses systems that are controlled by the organization and accessible to the public, typically without identification or authentication. Individuals authorized to post CUI onto publicly accessible systems are designated. The content of information is reviewed prior to posting onto publicly accessible systems to ensure that nonpublic information is not included.

NIST 800-171A Assessment Guidance

Examine

[SELECT FROM: Access control policy; procedures addressing publicly accessible content; security plan; list of users authorized to post publicly accessible content on organizational systems; training materials and/or records; records of publicly accessible information reviews; records of response to nonpublic information on public websites; system audit logs and records; security awareness training records; other relevant documents or records].
Interview

[SELECT FROM: Personnel with responsibilities for managing publicly accessible information posted on organizational systems; personnel with information security responsibilities].
Test

[SELECT FROM: Mechanisms implementing management of publicly accessible content].

ID	Assessment Objectives
3.1.22[a]	Individuals authorized to post or process information on publicly accessible systems are identified.
3.1.22[b]	Procedures to ensure CUI is not posted or processed on publicly accessible systems are identified.
3.1.22[c]	A review process in in place prior to posting of any content to publicly accessible systems.
3.1.22[d]	Content on publicly accessible information systems is reviewed to ensure that it does not include CUI.
3.1.22[e]	Mechanisms are in place to remove and address improper posting of CUI.

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