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§ I · Domain OUT · Control 3 of 16
Control
OUT-03
Edition
v.1.3
Status
Public review

OUT · Output Integrity & Supply Chain · Critical

OUT-03PII and secrets leakage prevention

PII and secrets leakage detection is applied to outputs. The agent does not disclose credentials, internal system information, other users' data, or other sensitive information.

Outputs are scanned for PII, credentials, internal system information, and other sensitive data that should not be disclosed. The agent does not leak secrets, other users' data, or internal implementation details in its outputs. This control is the output-side complement to DAT-03's input-side PII handling and is critical for preventing data breaches through agent outputs.

(Critical)A Critical failure precludes HI-AAF Certification regardless of the maturity level achieved on any other control.

Table OUT-03.1 · 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.

Leakage detection is active on all output paths; detection covers PII, credentials, and internal system information; no leakage incident has occurred in the review period or all incidents have been remediated.

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

    Leakage detection is active on all output paths.

  2. E.2

    Detection covers PII, credentials, and internal system information.

  3. E.3

    No leakage incident has occurred in the review period or all incidents have been remediated.

Table OUT-03.2 · Framework mappings

5 of 7 frameworks carry a control-level reference
NIST AI RMFMANAGE 2.3NIST AI Risk Management Framework 1.0
ISO/IEC 42001·ISO/IEC 42001:2023 · Artificial intelligence management system
OWASP LLM Top 10LLM02OWASP Top 10 for Large Language Model Applications
SOC 2 (TSC)P3.1, C1.1AICPA Trust Services Criteria for SOC 2 Type II
EU AI ActArt. 15(3)EU AI Act · Regulation (EU) 2024/1689
MITRE ATLAS·MITRE ATLAS · Adversarial Threat Landscape for AI Systems
SingaporePDPA s.24, AI Verify TransparencySingapore 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.

Related controls and terms

Cite this control

Human Intelligence. HI-AAF v1.3, OUT-03 PII and secrets leakage prevention. Public review edition, July 2026. https://humanintel.net/standard/out/out-03

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

https://humanintel.net/standard/out/out-03

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.