User Access Review
Specification
Review and revalidate user access for least privilege and separation of duties with a frequency that is commensurated with organizational risk tolerance and at least annually, or upon significant changes.
Threat coverage
Architectural relevance
Lifecycle
Data storage, Resource provisioning, Team and expertise, Data curation
Training, Guardrails, Supply Chain
Evaluation, Validation/Red Teaming, Re-evaluation
Orchestration, AI Services supply chain, AI applications
Operations, Maintenance
Archiving, Data deletion, Model disposal
Ownership / SSRM
PI
Shared Cloud Service Provider-Model Provider (Shared CSP-MP)
The CSP and MP are jointly responsible and accountable for the design, development, implementation, and enforcement of the control to mitigate security, privacy, or compliance risks associated with Large Language Model (LLM)/GenAI technologies in the context of the services or products they develop and offer.
Model
Owned by the Model Provider (MP)
The model provider (MP) designs, develops, and implements the control as part of their services or products to mitigate security, privacy, or compliance risks associated with the Large Language Model (LLM). Model Providers are entities that develop, train, and distribute foundational and fine-tuned AI models for various applications. They create the underlying AI capabilities that other actors build upon. Model Providers are responsible for model architecture, training methodologies, performance characteristics, and documentation of capabilities and limitations. They operate at the foundation layer of the AI stack and may provide direct API access to their models. Examples: OpenAI (GPT, DALL-E, Whisper), Anthropic(Claude), Google(Gemini), Meta(Llama), as well as any customized model.
Orchestrated
Shared Cloud Service Provider-Model Provider (Shared CSP-MP)
The CSP and MP are jointly responsible and accountable for the design, development, implementation, and enforcement of the control to mitigate security, privacy, or compliance risks associated with Large Language Model (LLM)/GenAI technologies in the context of the services or products they develop and offer.
Application
Shared Orchestrated Service Provider-Application Provider (Shared OSP-AP)
The OSP and AP are jointly responsible and accountable for the design, development, implementation, and enforcement of the control to mitigate security, privacy, or compliance risks associated with Large Language Model (LLM)/GenAI technologies in the context of the services or products they develop and offer.
Implementation guidelines
Auditing guidelines
1. Confirm the CSP conducts role-based access reviews for cloud infrastructure components. 2. Check reviews include both manual roles and programmatic access (e.g., service accounts). 3. Ensure mechanisms are in place to detect unused or excessive permissions. 4. Validate the CSP’s audit logs for evidence of review-driven changes. 5. Confirm periodic access reviews are included in SOC 2 or similar compliance audits. From CCM: 1. Determine if the required frequency for review of accounts is established. 2. Determine if accounts are reviewed for compliance, including the level of access and conflicting access, following the principle of least privilege and consideration of separation of duties. 3. Determine if accounts are reviewed at the organization-defined frequency.
Standards mappings
42001 B.3.2 - AI roles and responsibilities 27001 A.5.18 - Access rights 27001 A.5.15 - access control
Addendum
N/A
Article 8 Article 9 Article 14 Article 15
Addendum
Article 9 can be modified to add the specific entry on a specified/specific time-frame, as per needs of the organization.
MP-3.4-005
Addendum
No explicit reference to the requirement of periodically reviewing user access permissions in accordance with common security principles (e.g., least privilege, separation of duties) is made in the NIST AI 600-1 standard.
C4 DM-01 C4 DM-02 C5 IDM-05
Addendum
N/A
AI-CAIQ questions (1)
Are user access for least privilege and separation of duties reviewed and revalidated with a frequency commensurated with organizational risk tolerance and at least annually or upon significant changes?