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MC1530615 Stay informedUpdated messageNew featureUser impactAdmin impact

(Updated) Microsoft Teams: Report guest invitations for security concerns

Returned by 2 reference tenants · Corroborated by Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
Message Center archive Open in your tenant

Rollout

Roadmap
571297
Platforms
Desktop, Mac, Web

Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".

Schedule dates changed in the text

Date phrases in schedule sentences differ between the versions this installation saw
  • Seen 3 Nov 2026 early November 2026

Read from date phrases in Microsoft's text, not from notice metadata. A changed phrase can be a moved rollout, a new milestone or just rewording; "What changed" below shows which.

What the notice says

Microsoft’s text, safely structured

Updated November 3, 2026: We have updated the timeline. Thank you for your patience.

What and Why

Microsoft Teams will enable users to report guest invitations for security concerns directly from Teams. When users receive an unexpected or potentially malicious invitation to join another organization as a guest, they can report it to their IT admin for review, helping identify and mitigate phishing and other abuse through guest invitations.

Rollout Schedule

General Availability (Worldwide): We will begin rolling out in mid-November 2026 (previously early November) and expect to complete by mid-November 2026.

Impact on Your Organization

Users can report suspicious guest invitations when declining them in Teams. Reports are shared with their IT admin through the User reported security submissions report in the Teams admin center and with Microsoft for review.

Action Required/Recommendations

No action is required for organizations that already have Report a security concern enabled in their Teams messaging policy. Admins can manage this capability through Teams admin center > Messaging policies > Report a security concern.

Compliance considerations

QuestionAnswer
Does the change include an admin control?Yes. The capability is controlled through the Teams messaging policy setting for Report a security concern.

What changed

Between the versions this installation saw, newest first
    • Title Microsoft Teams: Report guest invitations for security concerns → (Updated) Microsoft Teams: Report guest invitations for security concerns
    • Tags New feature, User impact, Admin impact → Updated message, New feature, User impact, Admin impact

    Updated November 3, 2026: We have updated the timeline. Thank you for your patience.  [What and Why:] Microsoft Teams will enable users to report guest invitations … invitations. [Rollout Schedule:] General Availability (Worldwide): We will begin rolling out in mid-November 2026 (previously early November 2026November) and expect to complete by mid-November 2026. [Impact on Your Organization:] Users …

  2. · first version seen

Archive version history

Microsoft 365 Message Center Archive by Merill Fernando

These are the archive's capture times. They are separate from the versions returned by our reference tenants.

Read the archive's current copy

Updated November 3, 2026: We have updated the timeline. Thank you for your patience.  What and Why: Microsoft Teams will enable users to report guest invitations for security concerns directly from Teams. When users receive an unexpected or potentially malicious invitation to join another organization as a guest, they can report it to their IT admin for review, helping identify and mitigate phishing and other abuse through guest invitations. Rollout Schedule: General Availability (Worldwide): We will begin rolling out in mid-November 2026 (previously early November) and expect to complete by mid-November 2026. Impact on Your Organization: Users can report suspicious guest invitations when declining them in Teams. Reports are shared with their IT admin through the User reported security submissions report in the Teams admin center and with Microsoft for review. Action Required/Recommendations: No action is required for organizations that already have Report a security concern enabled in their Teams messaging policy. Admins can manage this capability through Teams admin center > Messaging policies > Report a security concern. Compliance considerations: Question Answer Does the change include an admin control? Yes. The capability is controlled through the Teams messaging policy setting for Report a security concern.

  1. Microsoft Teams: Report guest invitations for security concerns Action date: Not supplied
  2. Microsoft Teams: Report guest invitations for security concerns Action date: Not supplied

Learn more

Links from the notice and their documentation checks

Shared Message Center ID MC1530615

Shared roadmap ID 571297

Not confirmed here

What this page cannot tell you
  • Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
  • Some history or links were left out of the website export to keep it within its size limits.
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