Microsoft Teams Adds AI Phishing Detection for External Chats Starting in Early November

Microsoft will begin rolling out AI-powered, context-aware phishing detection in Microsoft Teams in early November 2026, according to Microsoft 365 Message Center guidance reported by gHacks. The feature targets external chats, where the detection uses conversational context to flag phishing attempts. The rollout matters because it adds automated screening to a channel where outside contacts can message employees directly.