Defender for Office 365 URL click alerts are expanding to Microsoft Teams. When users click malicious links in Teams messages, alerts now appear in the Defender portal for faster detection and investigation.
Microsoft has enhanced the Defender Tenant Allow/Block List to support blocking external Teams users and domains, centralizing external access controls across Microsoft 365.
Microsoft is expanding Teams message reporting to Defender for Office 365 Plan 1, allowing users to report suspicious and false-positive messages starting February 2026.
Microsoft will enable new messaging safety protections in Teams for tenants using the default configuration starting January 2026.
Microsoft will enable ZAP in Teams for organizations with Defender for Office 365 Plan 1 starting in January 2026, with an opt-out option available for security admins.
Admins can now remove users from Teams group chats and 1:1 conversations directly from Microsoft Defender, helping speed up incident response and containment.
Microsoft retired three licenses, introduced new Microsoft 365 Copilot promotions, and announced the renaming of the E5 mini-suites for Security and Compliance.
Microsoft Teams now integrates with the Microsoft Defender Tenant Allow/Block List, enabling admins to centrally manage blocked external domains across Microsoft 365 services.
Microsoft is rolling out three new security features to Teams chats and channel conversations: Weaponizable File Protection, Malicious URL Protection, and the ability to report messages as not a security concern.
Microsoft has released new Defender Security and Purview Compliance add-ons for organizations with Microsoft 365 Business Premium licenses. At the same time, the Viva license with Glint has been removed.
Microsoft Teams has added a new capability, allowing internal users to report security risks when interacting with external users in 1:1, group, and meeting chats.