Assessment Objective

Determine if:

• AC-22a. designated individuals are authorized to make information publicly accessible;
• AC-22b. authorized individuals are trained to ensure that publicly accessible information does not contain non-public information;
• AC-22c. the proposed content of information is reviewed prior to posting onto the publicly accessible system to ensure that non-public information is not included;
• AC-22d.
  • AC-22d.[01] the content on the publicly accessible system is reviewed for non-public information [Assignment: frequency];
  • AC-22d.[02] non-public information is removed from the publicly accessible system, if discovered.

Assessment Methods

Examine

• Access control policy
• procedures addressing publicly accessible content
• 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 non-public information on public websites
• system audit logs
• security awareness training records
• system security plan
• other relevant documents or records

Interview

• Organizational personnel with responsibilities for managing publicly accessible information posted on organizational systems
• organizational personnel with information security responsibilities

Test

• Mechanisms implementing management of publicly accessible content

Linked Issues

• NIST -

  https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final