Microsoft announced several new Defender features at the RSA Conference 2026, most of which are in preview and have minimal technical documentation. The primary additions include AI-powered triage agents in Security Copilot that automatically classify security alerts, a new dashboard that consolidates identity-related security events, automated hardening actions based on attack predictions, and voice-call monitoring in Microsoft Teams.

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At RSA Conference 2026, Microsoft announced a comprehensive set of updates to Microsoft Sentinel, its cloud-native Security Information and Event Management (SIEM) platform. The announcements focus on AI-driven automation, simplified multi-tenant management, and enhanced data integration capabilities designed to help security operations centers (SOCs) operate more efficiently at scale.

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