Microsoft Defender + Sentinel

Microsofts unified security portfolio, anchored by Microsoft Sentinel as the cloud-native SIEM and Microsoft Defender for Endpoint as the XDR engine, is the single most widely deployed enterprise security platform in the world. The 2026 convergence of Sentinel and Defender into a unified Microsoft Defender portal creates a single operational surface managing identity threats (Entra ID Protection), email threats (Defender for Office 365), endpoint telemetry (Defender for Endpoint), cloud workloads (Defender for Cloud), and SaaS applications, all feeding a common AI analytics layer powered by Security Copilot. Microsoft was named a Leader in the 2026 Gartner Magic Quadrant for Endpoint Protection Platforms for the seventh consecutive year. Sentinel processes over 25 petabytes of security data daily. The AI-powered playbook generator introduced in 2026 reduces playbook authoring time by an estimated 65%. Microsoft Defender for Endpoint Plan 2 is bundled within Microsoft 365 E5 licensing, meaning organizations often receive world-class endpoint protection at zero marginal cost. Microsoft estimates the average enterprise consolidating to its unified platform reduces total security tooling cost by 60%. Sentinels 2026 AI migration experience allows organizations running Splunk or IBM QRadar to upload detection rule exports directly to Sentinel, which automatically maps them to KQL-based analytics rules. The platform supports 200+ Microsoft-built data connectors.