au-16-1-identity-preservation

name	AU-16(1)_identity-preservation
description	Preserve the identity of individuals in cross-organizational audit trails.
category	information-gathering
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","au-16-1","au","enhancement"]
tech_stack	["aws","azure","gcp","linux","windows"]
cwe_ids	["CWE-778"]
chains_with	["IA-2","IA-4","IA-5","IA-8"]
prerequisites	["AU-16"]
severity_boost	{"IA-2":"Chain with IA-2 for comprehensive security coverage","IA-4":"Chain with IA-4 for comprehensive security coverage","IA-5":"Chain with IA-5 for comprehensive security coverage"}

AU-16(1) Identity Preservation

Enhancement of: AU-16

High-Level Description

Family: Audit and Accountability (AU) Framework: NIST SP 800-53 Rev 5

Identity preservation is applied when there is a need to be able to trace actions that are performed across organizational boundaries to a specific individual.

What to Check

• Verify AU-16(1) Identity Preservation is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for AU-16(1)
• Verify enhancement builds upon base control AU-16

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AU-16(1) implementation details. Verify the organization has documented how this control is satisfied.

Step 2: Validate Implementation

# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly

# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null

Step 3: Test Operating Effectiveness

Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.

Tools

Tool	Purpose	Usage
cloud-audit-mcp	Check logging configuration	cloud_audit_logging
AWS CLI	Review CloudTrail/CloudWatch	aws cloudtrail describe-trails

Remediation Guide

Control Statement

Preserve the identity of individuals in cross-organizational audit trails.

Implementation Guidance

Identity preservation is applied when there is a need to be able to trace actions that are performed across organizational boundaries to a specific individual.

Risk Assessment

Finding	Severity	Impact
AU-16(1) Identity Preservation not implemented