id: "AC-16(09)" title: "Attribute Reassignment — Regrading Mechanisms" family: "AC" family_name: "Access Control" sort_id: "ac-16.09" priority: "P1" implementation_level: "organization" parent: "AC-16" enhancement: True
Statement
Change security and privacy attributes associated with information only via regrading mechanisms validated using {{ insert: param, ac-16.9_prm_1 }}.
Guidance
A regrading mechanism is a trusted process authorized to re-classify and re-label data in accordance with a defined policy exception. Validated regrading mechanisms are used by organizations to provide the requisite levels of assurance for attribute reassignment activities. The validation is facilitated by ensuring that regrading mechanisms are single purpose and of limited function. Since security and privacy attribute changes can directly affect policy enforcement actions, implementing trustworthy regrading mechanisms is necessary to help ensure that such mechanisms perform in a consistent and correct mode of operation.
Assessment Objective: security attributes associated with information are changed only via regrading mechanisms validated using {{ insert: param, ac-16.09_odp.01 }};
Assessment Objective: privacy attributes associated with information are changed only via regrading mechanisms validated using {{ insert: param, ac-16.09_odp.02 }}.
Access control policy
procedures addressing reassignment of security attributes to information
system design documentation
system configuration settings and associated documentation
system audit records
system security plan
privacy plan
other relevant documents or records
Organizational personnel with responsibilities for reassigning association of security and privacy attributes to information
organizational personnel with information security and privacy responsibilities
system developers
Mechanisms implementing techniques or procedures for reassigning association of security and privacy attributes to information