Microsoft Teams: Users can report security concerns involving external collaborators

Microsoft Teams users will soon be able to report security concerns involving external collaborators in chats and meetings, starting April 2025 for targeted release and May 2025 for general availability. Admins can enable this feature in the Teams admin center. Shared channels are not supported. Coming soon: Microsoft Teams users will be able to report security risks and concerns with external users outside your organization in one-on-one chats, group chats, and meeting chats. Note: Shared channels are not supported at this time. As an admin, this feature will be available for you to enable it. This message is associated with Microsoft 365 Roadmap ID 481147. This message applies to Teams for Windows desktop, Teams for Mac desktop, and Teams for the web. When this will happen: Targeted Release: We will begin rolling out early April 2025 and expect to complete by mid-April 2025. General Availability (Worldwide): We will begin rolling out early May 2025 and expect to complete by mid-May 2025. How this will affect your organization: After this rollout, Teams users can hover on a chat message, select the three-dot menu, and then select Report message to report a message-based security concern when chatting or meeting with users outside their organization: View image in new tab This feature will be available by default for admins to configure. What you need to do to prepare: Review your existing reporting configuration in the Teams admin center > Settings & policies > Global (Org-wide default) settings > Report a security concern and enable the new feature if you want your users to take advantage of it: View image in new tab This rollout will happen automatically by the specified dates with no admin action required before the rollout. You may want to notify your users about this change and update any relevant documentation. Learn more: User reported message settings in Teams – Microsoft Defender for Office 365 | Microsoft Learn (will be updated before rollout begins) Message ID: MC1037768

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