Microsoft Teams to add AI-powered phishing detection in November 2026

Microsoft said the detection capability will use contextual conversation data to spot suspicious behavior, with particular attention to higher-risk messaging scenarios such as external first-contact chats. According to the Microsoft 365 Message Center update, the tool analyzes conversation context to identify behavior that may not include traditional indicators such as malicious links or files. Microsoft also said additional protection may apply in certain regions or scenarios.

The update is listed as being in development, with a scheduled rollout date of November 2026, when it will be generally available to Microsoft Teams users across the world. IT administrators will not need to take any action to enable the new feature, according to the report. The roadmap post did not explain exactly which AI platforms are being used to power the threat detection, TechRadar reported.

Microsoft said the capability is used only for security protection and not for productivity, summarization, advertising, user monitoring, or other non-security purposes. "Customer message content is not retained by the detection system for model training or other secondary uses," the company said. Microsoft also said it will not retain customer data for further AI training or other uses.

Microsoft Teams is a workplace collaboration platform, and the new detection process is designed to identify suspicious behavior in conversations rather than rely solely on scanning links and files. The company described the feature as AI-powered phishing detection that can identify phishing, social engineering, impersonation attempts and deceptive intent. The rollout is scheduled to make the capability generally available to all Microsoft Teams users in November 2026.