NewMicrosoft Teams
Microsoft Teams: Report suspicious guest invitations
Teams users will gain the ability to report suspicious guest invitations directly within the application, improving security incident visibility for IT admins by enabling easier detection and response to phishing and abuse attempts targeting guest access.
Microsoft's description
Microsoft Teams will enable users to report suspicious guest invitations directly from Teams. When users receive an unexpected or potentially malicious guest invitation, they can report it to their IT admin for review, helping identify and mitigate phishing and other abuse through guest invitations.