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§ I · Domain MON · Control 2 of 12
Control
MON-02
Edition
v.1.3
Status
Public review

MON · Continuous Monitoring & Human Oversight

MON-02Log retention and tamper evidence

Logs are retained per regulatory and operational requirements and stored in tamper-evident form.

Audit logs of agent actions are retained for a documented period appropriate to the regulatory environment and stored in tamper-evident form. Tamper evidence ensures that logs cannot be modified after the fact, which is critical for incident investigation, regulatory response, and assessment evidence. Retention periods match the requirements of applicable law and the organization's data retention policy.

Table MON-02.1 · Maturity criteria · v.1.3

L1 to L5 · the lowest level in scope caps the agent
L1Ad hoc

Controls exist informally; documentation is incomplete; no consistent review.

L2Documented

Controls are written down; ownership is assigned; review cadence is defined.

L3Operated

Controls are followed in practice; evidence is collected; deviations are tracked.

Retention periods are documented and enforced; logs are stored in tamper-evident form (append-only, cryptographic integrity, or equivalent); retention compliance is audited at a documented cadence.

L4Measured

Control effectiveness is measured against documented thresholds; trends are reported.

L5Continuously Improved

Controls evolve based on incident learning; maturity gains are evidenced over time.

The v1.3 edition publishes a control-specific criterion at L3 (Operated). The other levels apply the general ladder to this control; see the maturity ladder.

Evidence an assessor asks for

  1. E.1

    Retention periods are documented and enforced.

  2. E.2

    Logs are stored in tamper-evident form (append-only, cryptographic integrity, or equivalent).

  3. E.3

    Retention compliance is audited at a documented cadence.

Table MON-02.2 · Framework mappings

5 of 7 frameworks carry a control-level reference
NIST AI RMFMEASURE 2.4, MEASURE 2.11NIST AI Risk Management Framework 1.0
ISO/IEC 42001A.9.3ISO/IEC 42001:2023 · Artificial intelligence management system
OWASP LLM Top 10·OWASP Top 10 for Large Language Model Applications
SOC 2 (TSC)CC7.3, CC8.1AICPA Trust Services Criteria for SOC 2 Type II
EU AI ActArt. 14(4)EU AI Act · Regulation (EU) 2024/1689
MITRE ATLAS·MITRE ATLAS · Adversarial Threat Landscape for AI Systems
SingaporeAI Verify Human Agency & OversightSingapore Model AI Governance Framework / AI Verify / PDPA

Mappings are directional: meeting this control evidences but does not by itself satisfy the external requirement. A middle dot means no control-level reference is published at this edition; see the crosswalk.

Cite this control

Human Intelligence. HI-AAF v1.3, MON-02 Log retention and tamper evidence. Public review edition, July 2026. https://humanintel.net/standard/mon/mon-02

Edition v.1.3 · July 2026 · Public review · Markdown · PDF

https://humanintel.net/standard/mon/mon-02

Notice

HI-AAF v1.3 is an independent framework published by Human Intelligence. It is not affiliated with NIST, ISO, AICPA, or any government or accreditation body. The framework is offered openly for review during the current draft cycle.