Initial commit - 611 cybersecurity skills across all subdomains

skills/performing-access-review-and-certification/references/standards.md

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+# Standards and References - Access Review and Certification
+
+## NIST Standards
+- **NIST SP 800-53 Rev 5**:
+  - AC-2: Account Management (periodic review requirement)
+  - AC-2(3): Disable accounts after inactivity period
+  - AC-5: Separation of Duties
+  - AC-6: Least Privilege
+  - AC-6(7): Review of User Privileges
+  - AU-6: Audit Record Review, Analysis, and Reporting
+- **NIST SP 800-171**: 3.1.1 Authorized Access Control, 3.1.2 Transaction Control
+
+## Compliance Requirements
+- **SOX Section 404**: Quarterly access reviews for financial systems
+- **PCI DSS 4.0**: Requirement 7.2.5 - Review all access at least every six months
+- **HIPAA Security Rule**: 45 CFR 164.312(a)(1) - Access control review
+- **ISO 27001**: A.9.2.5 Review of user access rights
+- **GDPR Article 5(1)(f)**: Integrity and confidentiality of processing
+
+## Industry Frameworks
+- **CIS Controls v8**: Control 6.2 - Establish an Access Revoking Process
+- **COBIT 2019**: DSS05.04 - Manage user identity and logical access
+- **IGA Market**: SailPoint, Saviynt, One Identity, Omada