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controlAU-4
Audit Log Storage Capacity (AU-4)
Allocate audit log storage capacity to accommodate [organization-defined].
Security Baselines
LOWMODERATEHIGH
auditaccountabilitylogging
Why These Connect
Maps To2
These are equivalent or closely aligned requirements in other frameworks.
Baselined In3
This control is included in the linked security baseline (LOW, MODERATE, or HIGH).
Supports10
These related controls work together — a change to one may affect the others.
Enhances1
These enhancements add specific capabilities or refinements to the base control.
Related Controls(9)
AU-2Event Logging (AU-2)
LMH
AU-5Response to Audit Logging Process Failures (AU-5)LMH
AU-6Audit Record Review, Analysis, and Reporting (AU-6)LMH
AU-7Audit Record Reduction and Report Generation (AU-7)MH
AU-9Protection of Audit Information (AU-9)LMH
AU-11Audit Record Retention (AU-11)LMH
AU-12Audit Record Generation (AU-12)LMH
AU-14Session Audit (AU-14)SI-4System Monitoring (SI-4)LMH
Cross-Framework Mappings(2)
ISO 27001ISO/IEC 27001:20221 mappingFinal
NIST OLIR informative reference — SP 800-53 Rev 5 to ISO/IEC 27001:2022
HIPAAHIPAA Security Rule1 mappingFinal
NIST OLIR informative reference — HIPAA Security Rule to SP 800-53 Rev 5