Bulletproof Blog

Unlock True XDR: Go Beyond Endpoints with Microsoft Defender and E5

Written by Bulletproof | Aug 26, 2025, 12:00:00 PM

CrowdStrike Falcon is a strong endpoint protection solution, but modern threats don’t stop at the endpoint. Today’s attackers exploit identity, email, and cloud applications, making an endpoint-only leaves significant blind spots. To truly protect your organization, you need Extended Detection and Response (XDR) that correlates alerts across your entire digital estate. That’s where Microsoft Defender shines.

Microsoft's integrated platform - Defender for Office 365, Defender for Identity, Defender for Cloud Apps, and Defender for Endpoint - all feed into a unified system. This means alerts from Exchange phishing, Azure sign-ins, or cloud application misconfigurations receive the same robust treatment as endpoint malware. 

This comprehensive approach ensures: 

Integrated XDR Intelligence

Microsoft correlates alerts across endpoints, Azure sign-ins, Exchange phishing attempts, and SaaS misconfigurations.

For example, Manulife stopped a business email compromise (BEC) and cut incident response time by 43% after enabling Microsoft XDR to unify identity and endpoint signals. 

Holistic Visibility & Threat

Bulletproof consolidates logs and alerts across Microsoft sources—and select third-party tools—into Microsoft Sentinel and Defender XDR.

This allows us to detect and investigate threats across all domains, from endpoints to email to cloud infrastructure.

License Optimization & Budget Reallocation

These XDR features are already included in your Microsoft E5 license.

By decommissioning redundant point solutions, you not only enhance security posture—you unlock budget to reinvest in other critical areas like threat hunting or insider risk management.

How Bulletproof Accelerates XDR Deployment

We make it easy to get the most from Microsoft’s full XDR suite—seamlessly integrating Defender for Endpoint, Office 365, Identity, and Cloud Apps into a unified Microsoft Sentinel environment, tailored to your business.

With our automated SOAR playbooks and Security Copilot orchestration, you’ll reduce noise and focus only on what matters—cutting alert fatigue by up to 50% and narrowing cross-domain alerts to just 0.2–0.3 actionable events per user each month.

Bulletproof AI Ready Managed Security Elite MXDR is a fully managed, 24x7 extended detection & response service that helps organizations prevent, detect, investigate, & respond to modern cyber threats across cloud, identity, endpoints, email/collaboration, applications, & network environments & OT/ICS monitoring for industrial & operational technology environments.

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