On this page💼 AC-3 (6) PROTECTION OF USER AND SYSTEM INFORMATION ID: /frameworks/nist-sp-800-53-r4/ac/03/06 Description​ [Withdrawn: Incorporated into MP-4 and SC-28]. Similar​ Internal ID: dec-c-264aa629 Sub Sections​ SectionSub SectionsInternal RulesPoliciesFlagsCompliance