Microsoft Copilot Customer Lockbox vs Service Lockbox: Differences

Microsoft 365 administrators often need to decide between Customer Lockbox and Service Lockbox when managing data access for Copilot. Both features control how Microsoft engineers can access tenant data, but they serve different purposes and apply to different scenarios. Customer Lockbox gives you explicit approval control over any engineer access to your content. Service Lockbox … Read more

Microsoft Copilot Audit Log Retention: How to Extend Beyond Default

Microsoft Copilot interactions generate audit logs that record every prompt, response, and data access event. By default, Microsoft 365 retains these logs for only 90 days for users with an E5 license and 180 days for E5 Compliance add-on subscribers. If your organization needs to keep Copilot audit records for regulatory compliance, internal investigations, or … Read more

Microsoft Copilot With Microsoft Priva Subject Rights Requests

Microsoft Copilot integrates with Microsoft Priva to help your organization manage Subject Rights Requests under data privacy regulations like GDPR and CCPA. A Subject Rights Request is a formal inquiry from an individual who wants to access, export, or delete their personal data held by your company. Processing these requests manually can be time-consuming and … Read more

Microsoft Copilot With Information Protection Double Key Encryption

Microsoft Copilot with Information Protection Double Key Encryption is a security configuration that lets you control access to encrypted content within Copilot responses. When your organization uses Double Key Encryption, standard Copilot features cannot decrypt or read protected files without a second key that you manage. This article explains how Double Key Encryption affects Copilot, … Read more

Microsoft Copilot CMMC Level 2 Mapping: What Is Inherited and What Is Not

Organizations seeking Cybersecurity Maturity Model Certification CMMC Level 2 need to understand how Microsoft Copilot fits into their compliance boundary. Copilot runs on top of Microsoft 365 services that are already FedRAMP High certified, which provides a baseline of inherited controls. However, not every CMMC Level 2 practice is covered by Microsoft’s inherited controls. This … Read more

Microsoft Copilot With Azure Confidential Computing: Availability Notes

Microsoft Copilot processes user prompts and data using Microsoft 365 services. For organizations with strict data residency and encryption requirements, Microsoft offers Copilot with Azure Confidential Computing. This configuration adds a hardware-based trusted execution environment to protect data in use. This article explains what Azure Confidential Computing does for Copilot, which regions and plans support … Read more

Microsoft Copilot Privacy Impact Assessment Template Guidance

Organizations adopting Copilot for Microsoft 365 must complete a Privacy Impact Assessment or PIA to meet compliance requirements and understand data flows. A PIA identifies how Copilot processes prompts, retrieves data, and generates responses using the Microsoft Graph and your tenant content. Without a structured assessment, organizations risk exposing sensitive information or violating data protection … Read more

How to Fix Copilot MSAL_ERROR_INVALID_REFRESH_TOKEN in Desktop Apps

You open a Microsoft 365 desktop app like Word or Outlook and attempt to use Copilot, only to see the error MSAL_ERROR_INVALID_REFRESH_TOKEN. This error prevents Copilot from generating responses or connecting to Microsoft Graph data. The cause is a corrupted or expired refresh token that the Microsoft Authentication Library MSAL can no longer validate. This … Read more

Copilot OAuth 2.0 PKCE Code Verifier Mismatch: Diagnostic Steps

When Copilot fails to authenticate, you may see an error referencing a PKCE code verifier mismatch. This occurs when the cryptographic challenge sent by your client application does not match the verifier expected by the Microsoft identity platform. The mismatch blocks the token exchange and prevents Copilot from accessing Microsoft 365 data. This article explains … Read more

How to Resolve Copilot Kerberos Ticket Expired Error on Domain PCs

When using Copilot on a domain-joined Windows PC, you may see an error message stating that the Kerberos ticket has expired. This error typically occurs during a Copilot session when the underlying authentication token used by Microsoft 365 services is no longer valid. The root cause is that the Kerberos ticket granted by your domain … Read more