In The Know

Microsoft Purview Data Loss Prevention is expanding to Microsoft Cowork, giving data security admins a single DLP policy that spans both Microsoft 365 Copilot and Cowork. The integration blocks prompts that contain supported sensitive information types, prevents labeled knowledge sources from being used in ways that violate policy, and stops sensitive content from being sent to Bing for web search. One policy, one enforcement point, across your AI experiences.

Microsoft Teams is adding the ability to view shared files and their originating conversation side by side, so users can open a PDF, Markdown, or HTML file from a chat or channel message and see the discussion alongside it — jumping directly to where the file was shared without closing the preview or switching back to chat. For teams that regularly share documents for review or approval, this removes the back-and-forth of toggling between the file and the conversation to understand context. The feature is currently in development and expected to begin rolling out in November 2026.

Microsoft Edge is adding support for displaying sensitivity labels applied to Microsoft Information Protection-protected PDFs in the new Edge PDF viewer, giving users immediate visibility into a document’s classification before they act on it. When a protected PDF is opened, the applied sensitivity label is surfaced directly in the viewer — helping users understand the data handling requirements for that document without leaving the browser or opening a separate tool. For organizations relying on sensitivity labels as a primary data classification mechanism, this update closes a visibility gap that previously left users unaware of a PDF’s protection status at the point of use. The feature is currently in development and expected to begin rolling out in November 2026.

Microsoft Teams is introducing support for third-party synthetic audio and video detection, allowing organizations to integrate certified deepfake detection solutions directly into the meeting experience. When a detection solution identifies signs of manipulated or AI-generated audio or video, Teams surfaces warnings and risk indicators to meeting participants — helping users recognize potential impersonation attempts before acting on what they see or hear. For organizations where meeting security and identity trust are critical, this update adds a meaningful layer of protection against an increasingly accessible threat vector. The feature is currently in development and expected to begin rolling out in November 2026.

Microsoft Teams is introducing a single pane in the Teams Admin Center for monitoring and troubleshooting meeting and call health across the organization. Administrators can identify recurring patterns, investigate issues affecting users, and proactively address problems in both active and completed meetings and calls — without navigating across multiple tools or reports. The feature is currently rolling out for Commercial and GCC environments.

Microsoft Purview Insider Risk Management is extending risk detection to Microsoft Fabric by introducing ready-to-use risk indicators based on Power BI activity. Organizations can now incorporate these indicators into data theft and data leaks policies, capturing risky behavior in Power BI — such as unusual data exports or access patterns — alongside signals from other Microsoft 365 workloads. For compliance teams managing insider risk across an expanding data estate, this update closes a gap where business intelligence activity was previously outside IRM’s detection scope. The feature is currently in development and expected to begin rolling out in October 2026.

Microsoft Purview is introducing Classifier Simulation Mode, enabling admins to test and optimize custom classifiers against production data before publishing them to live environments. Custom classifiers with overly broad logic or inefficient patterns can generate excessive false positives, high match volumes, and scanning latency — Simulation Mode surfaces these issues before they affect enforcement. For compliance teams managing sensitive information types at scale, this update removes the guesswork from classifier deployment and replaces it with a validated, performance-tested path to production. The feature is currently in development and expected to begin rolling out in November 2026.

Microsoft Purview Data Loss Prevention and Information Protection auto-labeling are expanding beyond Microsoft services to cover non-Microsoft connected apps including Google Workspace, Box, Dropbox, Salesforce, ServiceNow, Amazon Web Services, and Cisco Webex. Organizations can now apply the same classifiers, sensitive information types, and sensitivity labels used across Microsoft 365 to detect and protect sensitive data shared through these platforms — without managing separate DLP tooling for each service. For compliance teams managing data across a mixed cloud environment, this update brings a meaningful portion of the shadow IT and cross-platform data exposure risk under centralized Purview governance. The feature is currently in development and expected to begin rolling out in September 2026.

Microsoft Purview Data Loss Prevention is expanding to calendar events in Outlook for Mac and mobile, enabling organizations to detect and prevent sensitive information from being shared through meeting subjects, descriptions, and invite content. When a policy is triggered, users receive policy tips, remediation guidance, or enforcement actions — the same protection experience already available for email, now applied to a surface that has historically operated outside DLP coverage. For organizations managing compliance across all communication channels, this update closes a meaningful gap where sensitive data could leave through calendar invites without any policy enforcement in place. The feature is currently in development and expected to begin rolling out in September 2026.

Microsoft Teams is introducing app-centric management in the Teams Admin Center for GCC High, giving admins granular control over which users, groups, or the entire tenant can install individual Teams apps. Admins can set a default behavior for newly published apps and override availability per app — choosing between all users, specific users and groups, or no one — replacing the broader app permission policy model with per-app precision. Existing app permission policies are migrated automatically to preserve current availability. The feature is currently in development and expected to begin rolling out in September 2026.