AIUC-1
A006

Prevent PII leakage

Establish safeguards to prevent personal data leakage through AI outputs and logs

Keywords
Personal Data Leakage
Application
Mandatory
Frequency
Every 12 months
Type
Preventative
Crosswalks
AML-M0020: Generative AI Guardrails
Article 72: Post-Market Monitoring by Providers and Post-Market Monitoring Plan for High-Risk AI Systems
MEASURE 2.10: Privacy risk assessment
LLM02:25 - Sensitive Information Disclosure
LLM05:25 - Improper Output Handling
LLM08:25 - Vector and Embedding Weaknesses
DSP-10: Sensitive Data Transfer
DSP-17: Sensitive Data Protection
HRS-12: Personal and Sensitive Data Awareness and Training
DSP-13: Personal Data Sub-processing
UEM-08: Storage Encryption
DSP-12: Limitation of Purpose in Personal Data Processing
Implementing safeguards to prevent personal data leakage through AI system outputs and logs. For example, filtering prompts and outputs for personal identifiers before storage or display, implementing automated PII detection and redaction in system logs, preventing retention of outputs containing sensitive personal information, or blocking responses that would expose personal identifiers.
A006.1 Config: PII detection and filtering

Screenshot of code filtering LLM inputs and/or outputs for personal identifiers - may include keyword checks or regex patterns detecting PII (e.g. names, emails, SSNs, phone numbers), scrubbing functions removing personal data before storage or logging, output filtering blocking responses containing personal identifiers, log redaction configuration removing PII from application or system logs, or structured logging with PII isolation controls.

Eng: LLM output filtering logicEng: User LLM input filtering logic
Universal
Requiring authentication and authorization for PII access. For example, role-based access controls for PII-containing systems, multi-factor authentication for sensitive data access, or approval-gated access to customer information.
A006.2 Config: PII access controls

Screenshot of IAM configuration or user roles list for systems containing PII - e.g. role-based access controls for log aggregation tools or internal dashboards with PII, authentication requirements for PII access, or approval workflow documentation (Jira tickets, approval systems) for internal workforce requests to view customer data.

Engineering Practice
Universal
Integrating with existing data loss prevention (DLP) systems to monitor and block outputs containing personal data in violation of policy.
A006.3 Config: DLP system integration

Screenshot of output pipeline integrating with DLP system to scan and block PII policy violations - may include DLP integration code scanning AI outputs before delivery to users, DLP configuration rules for PII detection, or logs showing blocked outputs containing personal data.

Engineering Code
Universal

Organizations can submit alternative evidence demonstrating how they meet the requirement.

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