Official documentation checked October 14, 2026. A legal hold preserves evidence; it does not turn Microsoft 365 Copilot into an eDiscovery search tool or grant users access to preserved copies. When a file or mailbox is subject to a hold or retention policy, separate two questions: can the user access the current working content, and … Read more
Official documentation checked October 14, 2026. Protecting Copilot requires decisions about sign-in, the device or app carrying organizational data, and the content itself. Conditional Access, Intune app protection and Microsoft Purview are complementary controls; none should be described as a universal switch that secures every Copilot client and every response. Start with the exact product, … Read more
Official documentation checked October 14, 2026. A prompt containing confidential information deserves investigation, but it is not by itself proof that an unauthorized person received the information. First establish which Copilot product and account were used, what data was submitted, and who could see or receive the result. This guide covers organizational Microsoft 365 Copilot … Read more
Government tenants subject to the International Traffic in Arms Regulations need to verify that Copilot services meet strict data handling and access requirements. ITAR controls the export of defense-related technical data, and any cloud service processing such data must prevent unauthorized access by foreign persons. Microsoft offers Government Community Cloud High and Department of Defense … Read more
Security and compliance teams need visibility into how Copilot is being used across their organization. The Activity Explorer in Microsoft Purview provides a centralized log of Copilot interactions, including prompts, responses, and data sources accessed. Without this tool, administrators cannot track usage patterns, identify risky behavior, or prove compliance with data governance policies. This article … Read more
Official documentation checked October 14, 2026. “Copilot prompt logging retention” can mean two different requirements: retaining the audit trail of an interaction, or retaining the actual prompt and response. Microsoft Purview manages these as different records. Decide which evidence you need before changing a policy. Do not run Set-AdminAuditLogConfig -AuditLogRetentionPeriod for this purpose. That parameter … Read more
Official documentation checked October 14, 2026. Microsoft 365 Copilot can be part of a Customer Key deployment, but “bring your own key” is not a single switch that makes the entire AI service private or gives you an instant, universal shutoff. The useful question is which stored data must use customer-controlled root keys, and whether … Read more
Official documentation checked October 14, 2026. AADSTS50076 means the sign-in needs multifactor authentication. The appropriate first step is to complete a fresh, legitimate sign-in challenge—not to turn off MFA or exclude Copilot from security policy. If the challenge cannot be completed, the sign-in record helps the administrator identify why. This guide covers Copilot used with … Read more
When you open Microsoft 365 Chat and try to send a prompt, Copilot may return an HTTP 403 Forbidden error. This error means your request was blocked before it reached the Copilot service. The most common cause is a missing or expired license assignment for Copilot. In some cases, a Conditional Access policy or an … Read more
Official documentation checked October 14, 2026. AADSTS65001 indicates missing consent for the application and resource in the failed request. It does not automatically mean an administrator should grant every permission to an application named “Copilot.” Identify the actual application first, then use the organization’s consent-review process. This distinction matters when the error comes from an … Read more