Microsoft Defender for Office 365 expands AIR auto-remediation to malicious similarity clusters, automating approval of remediation actions without manual intervention. Rolling out worldwide mid to late December 2025, this feature reduces SOC workload and speeds threat response. It’s off by default and can be enabled in the Defender portal.
Microsoft Teams will expand the Interpreter agent to support real-time speech-to-speech interpretation in calls starting January 2026 for users with a Microsoft 365 Copilot license. Users can choose languages, adjust audio balance, and select voice options. It works best in structured conversations and requires policy configuration.
Starting January 2026, Teams Phone porting requires a one-time Know Your Customer (KYC) process via Teams Admin Center. Admins must submit business info and documents for validation before port-in requests. Existing numbers are unaffected. This applies globally and includes all tenants, with role-based access control via Entra ID.
Starting March 1, 2026, EWS access will be blocked for mailboxes with Exchange Online Kiosk, Microsoft 365/Office 365 F1, and F3 licenses, which currently lack EWS rights. To maintain EWS access, users must be assigned licenses with EWS rights, or EWS requests will return HTTP 403 errors.
Viva Engage community admins can soon update cover photos directly from the Teams iOS app, aligning with existing capabilities on other platforms. This feature, enabled by default without admin setup, will roll out worldwide from late December 2025 to early January 2026. No compliance issues identified.
Microsoft Planner will support Microsoft Information Protection (MIP) content sensitivity labels by December 15, 2025, enabling encryption, blocking copy/print/export, and enforcing read-only access. This enhances data protection and compliance, complements existing container-level labels, and requires no changes to current labels but recommends reviewing Purview settings and updating training.
Microsoft Teams will increase bandwidth for NDI feeds in meetings, enabling up to eight distinct 1080p streams without pinning or spotlighting participants. This automatic enhancement requires no admin changes and will roll out from early to mid-January 2026 for Windows and Mac desktop users.
Mobile users can utilize Copilot Shortcuts with suggested prompts to edit a Page.
Communication Compliance is improving the capabilities and customization of policy alerts. Admins will be able to customize the alert frequency per policy as well as adjust the email alerts frequency and recipients within the policy creation wizard.
Microsoft Purview Communication Compliance provides the tools to help organizations detect regulatory compliance violations (for example SEC or FINRA), such as sensitive or confidential information, harassing or threatening language, and sharing of adult content. Built with privacy by design, usernames are pseudonymized by default, role-based access controls are built in, investigators are opted in by an admin, and audit logs are in place to ensure user-level privacy.
I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.
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