> ## Documentation Index
> Fetch the complete documentation index at: https://standard.aiuc-1.com/llms.txt
> Use this file to discover all available pages before exploring further.

# A005: Prevent cross-customer data exposure

export const InlineClock = ({city, timeZone}) => {
  const [time, setTime] = useState('--:--:--');
  useEffect(() => {
    const update = () => setTime(new Intl.DateTimeFormat('en-US', {
      hour: '2-digit',
      minute: '2-digit',
      second: '2-digit',
      hour12: false,
      timeZone
    }).format(new Date()));
    update();
    const id = setInterval(update, 1000);
    return () => clearInterval(id);
  }, [timeZone]);
  return <div className="aiuc-footer-clock">
      <span className="aiuc-footer-clock-city">{city}</span>
      <span className="aiuc-footer-clock-time">{time}</span>
    </div>;
};

Implement safeguards to prevent cross-customer data exposure

<div className="aiuc-requirement-overview">
  <section className="aiuc-requirement-overview-section aiuc-requirement-overview-taxonomy">
    <div className="aiuc-requirement-overview-group">
      <div className="aiuc-requirement-overview-label">Keywords</div>

      <div className="aiuc-requirement-overview-pill-list">
        <span className="aiuc-requirement-overview-pill">Cross-Customer Data</span>
        <span className="aiuc-requirement-overview-pill">Model Training</span>
        <span className="aiuc-requirement-overview-pill">Data Rights</span>
      </div>
    </div>
  </section>

  <section className="aiuc-requirement-overview-section aiuc-requirement-overview-details">
    <div className="aiuc-requirement-overview-detail">
      <div className="aiuc-requirement-overview-label">Application</div>
      <span className="aiuc-requirement-overview-pill">Mandatory</span>
    </div>

    <div className="aiuc-requirement-overview-detail">
      <div className="aiuc-requirement-overview-label">Frequency</div>
      <span className="aiuc-requirement-overview-pill">Every 12 months</span>
    </div>

    <div className="aiuc-requirement-overview-detail">
      <div className="aiuc-requirement-overview-label">Type</div>
      <span className="aiuc-requirement-overview-pill">Preventative</span>
    </div>

    <div className="aiuc-requirement-overview-detail">
      <div className="aiuc-requirement-overview-label">Capabilities</div>

      <div className="aiuc-requirement-overview-pill-list">
        <span className="aiuc-requirement-overview-pill">Universal</span>
      </div>
    </div>
  </section>

  <section className="aiuc-requirement-overview-section aiuc-requirement-overview-crosswalks">
    <div className="aiuc-requirement-overview-label">Crosswalks</div>

    <div className="aiuc-requirement-crosswalk-grid">
      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">NIST AI RMF</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="US government framework for managing AI risks throughout the AI lifecycle with four core functions: Govern, Map, Measure, Manage" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/nist-ai-rmf" title="Privacy risk of the AI system – as identified in the MAP function – is examined and documented.">MEASURE 2.10: Privacy risk assessment</a>
        </div>
      </div>

      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">OWASP Top 10</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="Curated list of the most critical security threats to LLM and generative AI systems" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/owasp-top-10" title="Sensitive info in LLMs includes PII, financial, health, business, security, and legal data. Proprietary models face risks with unique training methods and sour…">LLM02:25 - Sensitive Information Disclosure</a>
          <a href="/crosswalks/owasp-top-10" title="Improper Output Handling involves inadequate validation of LLM outputs before downstream use. Exploits include XSS, CSRF, SSRF, privilege escalation, or remote…">LLM05:25 - Improper Output Handling</a>
          <a href="/crosswalks/owasp-top-10" title="Vectors and embeddings vulnerabilities in RAG with LLMs allow exploits via weak generation, storage, or retrieval. These can inject harmful content, manipulate…">LLM08:25 - Vector and Embedding Weaknesses</a>
        </div>
      </div>

      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">CSA AICM</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="Cloud Security Alliance’s AI Controls Matrix provides security controls framework specifically designed for AI/ML systems" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/csa-aicm" title="Design, develop, deploy and configure applications and infrastructures such that tenant access is appropriately segmented and segregated, monitored and restric…">I\&S-06: Segmentation and Segregation</a>
          <a href="/crosswalks/csa-aicm" title="Use Privacy Enhancing Technologies for training data, informed by risk and privacy impact analysis and business use cases.">DSP-22: Privacy Enhancing Technologies</a>
          <a href="/crosswalks/csa-aicm" title="Protect information from unauthorized disclosure on managed endpoint devices with storage encryption.">UEM-08: Storage Encryption</a>
        </div>
      </div>

      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">IBM AI Risk Atlas</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="Comprehensive taxonomy of risks associated with ML models, GenAI, and AI Agents from IBM Research" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/ibm-ai-risk-atlas" title="Inclusion or presence of personal identifiable information (PII) and sensitive personal information (SPI) in the data used for training or fine tuning the mode…">IBM 30: Training Data - Personal information in data</a>
          <a href="/crosswalks/ibm-ai-risk-atlas" title="Even with the removal of personal information (PI) and sensitive personal information (SPI) from data, it might be possible to identify persons due to correlat…">IBM 31: Training Data - Reidentification</a>
          <a href="/crosswalks/ibm-ai-risk-atlas" title="Confidential information might be included as part of the data that is used to train or tune the model.">IBM 38: Training Data - Confidential information in data</a>
          <a href="/crosswalks/ibm-ai-risk-atlas" title="A membership inference attack repeatedly queries a model to determine if a given input was part of the model's training. More specifically, given a trained mod…">IBM 57: Inference - Membership inference attack</a>
          <a href="/crosswalks/ibm-ai-risk-atlas" title="When personal identifiable information (PII) or sensitive personal information (SPI) are used in training data, fine-tuning data, seed data for synthetic data…">IBM 72: Output - Exposing personal information</a>
          <a href="/crosswalks/ibm-ai-risk-atlas" title="When confidential information is used in training data, fine-tuning data, or as part of the prompt, models might reveal that data in the generated output. Reve…">IBM 74: Output - Revealing confidential information</a>
        </div>
      </div>

      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">Cisco AI Security Framework</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="Comprehensive AI threat landscape taxonomy identifying 19 attacker objectives with 150+ subtechniques from Cisco" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/cisco-ai-security-safety-framework" title="Actors intentionally or unintentionally cause sensitive information to be exposed through model outputs, API responses, or system behaviors. This includes leak…">AITech-8.2: Data Exfiltration / Exposure</a>
          <a href="/crosswalks/cisco-ai-security-safety-framework" title="Actors reconstructs private training data, sensitive features, or confidential information from a trained model by exploiting the model's learned representatio…">AITech-10.2: Model Inversion</a>
          <a href="/crosswalks/cisco-ai-security-safety-framework" title="Actors exploit insufficient sanitization, validation, filtering, or security controls applied to content generated by models or agents before it is passed to d…">AITech-12.2: Insecure Output Handling</a>
        </div>
      </div>

      <div className="aiuc-requirement-crosswalk-group">
        <div className="aiuc-requirement-crosswalk-heading">
          <span className="aiuc-requirement-crosswalk-title">OWASP Agentic Top 10</span> <span className="aiuc-help-marker aiuc-crosswalk-help-marker" data-tooltip="Curated list of the most critical security threats to autonomous AI agent systems" tabIndex="0">?</span>
        </div>

        <div className="aiuc-requirement-crosswalk-rule" aria-hidden="true" />

        <div className="aiuc-requirement-crosswalk-items">
          <a href="/crosswalks/owasp-agentic-top-10" title="Attackers poison agent memory systems, embeddings, and RAG databases to corrupt stored information and manipulate decision-making across sessions (e.g. Gemini…">ASI06 - Memory and Context Poisoning</a>
        </div>
      </div>
    </div>
  </section>
</div>

<section className="aiuc-requirement-control-evidence">
  <div className="aiuc-requirement-control-evidence-headings">
    <h2>Control activities</h2>
    <h2>Typical evidence</h2>
  </div>

  <div className="aiuc-requirement-control-evidence-group">
    <div className="aiuc-requirement-control-evidence-label">
      <span>Should include</span> <span className="aiuc-help-marker" data-tooltip="Organizations must demonstrate core controls to meet the requirement. Auditors may accept alternative implementations that achieve equivalent outcomes." tabIndex="0">?</span>
    </div>

    <div className="aiuc-requirement-control-evidence-row">
      <div className="aiuc-requirement-card aiuc-requirement-control-card">
        <div className="aiuc-requirement-control-item">
          <span className="aiuc-requirement-control-bullet" aria-hidden="true" />

          <p><strong>Establishing explicit consent and disclosure for combined data usage.</strong> For example, informing customers when their data will be combined with competitor data, disclosing data anonymization and abstraction policies, providing opt-out mechanisms.</p>
        </div>
      </div>

      <div className="aiuc-requirement-card aiuc-requirement-evidence-card">
        <div className="aiuc-requirement-evidence-title">A005.1 Documentation: Consent for combined data usage</div>
        <p>Typically demonstrated by Data Processing Agreement or Terms of Service</p>

        <div className="aiuc-requirement-evidence-meta">
          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Category</div>
            <a href="/evidence/legal-policies">Legal Policies</a>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Typical location</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Data Processing Agreement</span>
              <span className="aiuc-requirement-evidence-pill">Terms of Service</span>
            </div>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Capabilities</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Universal</span>
            </div>
          </div>
        </div>
      </div>
    </div>

    <div className="aiuc-requirement-control-evidence-row">
      <div className="aiuc-requirement-card aiuc-requirement-control-card">
        <div className="aiuc-requirement-control-item">
          <span className="aiuc-requirement-control-bullet" aria-hidden="true" />

          <p><strong>Implementing customer data isolation controls.</strong> For example, enforcing strict logical and physical separation of customer data, applying tenant-specific encryption, validating data flow boundaries in shared infrastructure, establishing technical barriers between customer datasets during training.</p>
        </div>
      </div>

      <div className="aiuc-requirement-card aiuc-requirement-evidence-card">
        <div className="aiuc-requirement-evidence-title">A005.2 Config: Customer data isolation controls</div>
        <p>Configuration or code demonstrating enforced isolation of each customer's data. For example, tenant/app-ID enforcement in the database schema, namespace or per-tenant isolation in the retrieval/vector store for RAG, logical isolation appropriate to the architecture.</p>

        <div className="aiuc-requirement-evidence-meta">
          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Category</div>
            <a href="/evidence/technical-implementation">Technical Implementation</a>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Typical location</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Engineering Code</span>
            </div>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Capabilities</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Universal</span>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

  <div className="aiuc-requirement-control-evidence-group">
    <div className="aiuc-requirement-control-evidence-label">
      <span>May include</span> <span className="aiuc-help-marker" data-tooltip="Supplemental controls demonstrating additional safeguards. Recommended when particularly relevant to the organization’s use case." tabIndex="0">?</span>
    </div>

    <div className="aiuc-requirement-control-evidence-row">
      <div className="aiuc-requirement-card aiuc-requirement-control-card">
        <div className="aiuc-requirement-control-item">
          <span className="aiuc-requirement-control-bullet" aria-hidden="true" />

          <p><strong>Implementing specific privacy-enhancing technologies (PETs) to reduce competitive exposure.</strong></p>
        </div>
      </div>

      <div className="aiuc-requirement-card aiuc-requirement-evidence-card">
        <div className="aiuc-requirement-evidence-title">A005.3 Config: Privacy-enhancing controls</div>
        <p>May include tokenization, hashing, or anonymization techniques (robust to prevent re-identification or reversal) making data algorithmic-usable but not human-readable, differential privacy implementation obfuscating individual contributions, federated learning configuration avoiding centralized raw data, or data masking/pseudonymization protecting customer identities.</p>

        <div className="aiuc-requirement-evidence-meta">
          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Category</div>
            <a href="/evidence/technical-implementation">Technical Implementation</a>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Typical location</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Engineering Code</span>
            </div>
          </div>

          <div className="aiuc-requirement-evidence-meta-group">
            <div className="aiuc-requirement-evidence-meta-label">Capabilities</div>

            <div className="aiuc-requirement-evidence-pill-list">
              <span className="aiuc-requirement-evidence-pill">Universal</span>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

  <p className="aiuc-requirement-alternative-evidence">Organizations can submit alternative evidence demonstrating how they meet the requirement.</p>
</section>

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        <span className="aiuc-footer-codeblock-text">AIUC-1 requirements for agent data, privacy, security, safety, reliability, accountability, and societal risk.</span>
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