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Control 3.10: SEC Reg S-P — Privacy of Consumer Financial Information — Troubleshooting

Common issues and resolution steps for privacy controls protecting consumer financial information in Copilot interactions, including incident response program and vendor notification issues.

Common Issues

Issue 1: DLP Not Detecting NPI in Copilot Responses

  • Symptoms: Copilot generates responses containing SSNs, account numbers, or other NPI without triggering DLP.
  • Root Cause: DLP policies may not cover Copilot interaction locations, or the sensitive information types do not match the data format in Copilot outputs.
  • Resolution:
  • Verify the DLP policy includes Copilot-relevant locations (Exchange, Teams, SharePoint).
  • Test the sensitive information type against the specific data format appearing in Copilot responses.
  • Update SIT patterns if Copilot formats data differently (e.g., partial masking, different separators).
  • Enable DLP for the Copilot interaction workload if available in the tenant.

Issue 2: Information Barriers Not Blocking Copilot Cross-Segment Access

  • Symptoms: Users in one segment can access consumer financial data from another segment through Copilot prompts.
  • Root Cause: Information barriers may not fully apply to Copilot's content grounding, or the barrier segments are misconfigured.
  • Resolution:
  • Verify information barrier policies are active: Get-InformationBarrierPolicy | Select Name, State
  • Confirm segment assignments include all relevant users.
  • Check that SharePoint sites containing NPI have correct segment associations.
  • Test with Content Search to verify the same user cannot access cross-segment content through other search tools.

Issue 3: Excessive DLP False Positives on Financial Data

  • Symptoms: Legitimate financial communications are being blocked by DLP, disrupting business operations.
  • Root Cause: Sensitive information type patterns may be matching non-NPI financial data (e.g., reference numbers, timestamps).
  • Resolution:
  • Review false positive incidents to identify pattern-matching issues.
  • Add exclusion rules for known false positive patterns.
  • Increase the confidence threshold for SIT detections.
  • Implement context-based rules that require NPI to appear alongside other identifying information.

Issue 4: NPI Exposure in Copilot Meeting Summaries

  • Symptoms: Copilot meeting summaries in Teams capture verbally discussed NPI such as account numbers or SSNs.
  • Root Cause: Copilot transcribes meeting audio and may include NPI spoken during the meeting in summaries.
  • Resolution:
  • Implement DLP policies on Teams meeting transcripts and summaries.
  • Train users to avoid verbalizing full NPI during Copilot-enabled meetings.
  • Configure Copilot meeting settings to restrict summary distribution.
  • Apply sensitivity labels to meeting recordings and transcripts containing financial discussions.

Issue 5: 72-Hour Vendor Notification Window — Calculation and Triggering

  • Symptoms: Uncertainty about when the 72-hour clock starts under SEC Rule 248.30(a)(3), or the institution cannot determine whether the window has been met for a past incident.
  • Root Cause: The rule requires notification within 72 hours of "detection," but "detection" is not precisely defined in the amended regulation. Institutions may not have a consistent definition, making clock-start determination inconsistent.
  • Resolution:
  • Define "detection" in writing in the incident response program: the 72-hour clock starts at the earliest of: (a) a DLP alert flagging NPI exposure through Copilot, (b) a user report of NPI exposure, or (c) any other event giving the institution reason to believe unauthorized access occurred. Document this definition in the IRP.
  • Use the incident response timer script (Script 5 in the PowerShell Setup guide) to track the notification deadline from the moment of detection. Run it at detection, not at the end of investigation.
  • Note that the 72-hour window is a notification deadline, not an investigation completion deadline — the notification to Microsoft can precede a completed investigation. The notification should describe the known facts and the status of the ongoing investigation.
  • If a past incident is discovered to have missed the 72-hour window: document the gap, notify Microsoft as soon as possible, and consult legal counsel regarding voluntary self-disclosure to the SEC.

Issue 6: Microsoft Notification Procedure for Copilot NPI Incidents

  • Symptoms: When a Copilot NPI incident occurs, the compliance team cannot determine how to formally notify Microsoft as the service provider under Rule 248.30(a)(3).
  • Root Cause: Microsoft's notification path for Reg S-P vendor notification is not the same as general support requests. The correct channel is not obvious from standard Microsoft 365 admin documentation.
  • Resolution:
  • Primary channel — Microsoft Security Response Center (MSRC): For security incidents involving unauthorized access to NPI through Copilot, report to MSRC at msrc.microsoft.com. This is Microsoft's designated security incident response team.
  • Secondary channel — Microsoft 365 admin portal: For incidents reportable under the data processing terms in the Microsoft Online Subscription Agreement or Data Processing Agreement, use the admin portal (admin.microsoft.com > Support > New service request) and explicitly reference "Reg S-P Rule 248.30(a)(3) notification."
  • Microsoft account team: Contact the Microsoft account team to confirm the correct notification path and to confirm that Microsoft acknowledges receipt of the notification — confirmation is important for documentation.
  • Pre-stage the notification: draft a notification template before an incident occurs. The template should include: institution name and contact, incident description, NPI categories affected, estimated scope, containment status, and the regulatory citation (17 CFR 248.30(a)(3)).
  • Document the Microsoft notification in the incident record: date/time, channel used, Microsoft confirmation of receipt, and any Microsoft response.

Issue 7: Incident Response Program Not Meeting "Written" Requirement

  • Symptoms: The institution has informal processes for handling NPI incidents but has not documented a formal written incident response program as required by Rule 248.30(a)(4).
  • Root Cause: Incident response may have evolved organically without formal documentation, or the existing IRP does not explicitly cover Copilot scenarios or the amended Reg S-P notification requirements.
  • Resolution:
  • Draft or update the written IRP to explicitly address: (a) Copilot-related NPI incidents, (b) the 72-hour vendor notification procedure per Rule 248.30(a)(3), and (c) the 30-day customer notification timeline.
  • Ensure the IRP is formally approved (signed by the designated individual responsible for the safeguards program) and version-controlled.
  • The IRP does not need to be a standalone document — it can be a section of a broader information security program or privacy policy document. What matters is that it is written, approved, and accessible to those responsible for responding to incidents.
  • Conduct a tabletop exercise after documentation is complete to verify that the written procedures are actionable.

Diagnostic Steps

  1. Check DLP policy status: Get-DlpCompliancePolicy | Select Name, Enabled, Mode
  2. Review SIT accuracy: Test each sensitive information type against known NPI samples.
  3. Verify barrier status: Get-InformationBarrierPolicy | Select Name, State, Segments
  4. Test Copilot responses: Prompt Copilot with queries that might surface NPI from test data.
  5. Verify IRP exists and is written: Confirm the incident response program is a documented, approved policy.
  6. Check 72-hour procedure: Confirm the Microsoft notification path and contact are documented and accessible.

Escalation

Severity Condition Escalation Path
Critical Confirmed NPI breach via Copilot interactions Privacy Officer + Chief Compliance Officer + Legal
Critical 72-hour Microsoft notification window at risk of being missed Privacy Officer + Legal — execute notification immediately
High Systematic DLP gaps allowing NPI exposure IT Security + Compliance team
High Written IRP does not meet Rule 248.30(a)(4) requirements Chief Compliance Officer + Legal
Medium Information barrier gaps for specific segments IT + Compliance for barrier reconfiguration
Medium 72-hour notification window calculation unclear Compliance counsel for definition clarification
Low False positive rate affecting operations Compliance team for policy tuning