Unmatched Protection for Your Microsoft Environment with Xcitium Managed EDR

Updated on February 2, 2026, by Xcitium

Give your Microsoft ecosystem a higher level of security—without upgrading licenses or adding complexity.

Xcitium Managed EDR integrates seamlessly with Microsoft environments to deliver prevention-first protection, 24×7 SOC monitoring, and built-in incident response. The result is enterprise-grade security that goes beyond traditional detection tools and eliminates gaps before threats can cause damage.

Enterprise-Grade Security on Microsoft 365 E3—No E5 Upgrade Required

Microsoft 365 E3 provides a solid foundation for productivity, identity protection, and Microsoft Defender antivirus. However, many organizations consider upgrading to E5 primarily to gain advanced detection capabilities.

With Xcitium Managed EDR, you don’t need that upgrade.

By adding prevention, continuous monitoring, and incident response to Microsoft 365 E3, organizations achieve stronger protection than detection-only EDR upgrades—at a significantly lower cost and with no disruption to their existing Microsoft tenant.

Detection vs Prevention: Why It Matters

Microsoft 365 E5 enhances detection.
Xcitium Managed EDR enhances prevention.

Detection tools respond after suspicious behavior appears. Prevention stops unknown threats before they ever execute. That difference eliminates dwell time, reduces alerts, and prevents damage instead of reacting to it.

E3 + Xcitium Managed EDR is a true prevention upgrade.

How Xcitium Elevates Microsoft 365 E3 Security

Xcitium Managed EDR extends your Microsoft environment with advanced protection that operates continuously and transparently.

ZeroDwell™ pre-execution protection stops unknown threats instantly using kernel-level virtualization, removing the risk window entirely. A global 24×7 SOC monitors and validates suspicious activity in real time, ensuring rapid, expert-led action. Full response and remediation are included—covering isolation, containment, quarantine, and session termination—without additional contracts or surprise fees.

By correlating identity signals, endpoint behavior, cloud activity, network patterns, and AI-driven verdicts, Xcitium delivers unified, high-confidence security decisions across your environment.

Why Organizations Choose Xcitium with Microsoft

Security teams gain stronger outcomes without changing licenses, adding complexity, or relying on alert-heavy detection tools. IT and operations teams benefit from simplified workflows, reduced alert fatigue, and immediate access to experienced responders—all while avoiding the cost and disruption of an E5 upgrade.

This approach delivers proactive defense, faster containment, and predictable costs, while preserving your existing Microsoft investment.

Microsoft vs Xcitium: Protection Comparison

Microsoft 365 E3 and E5 focus primarily on detection, requiring upgrades and additional costs for response capabilities. Xcitium Managed EDR and Managed SOC solutions deliver prevention-based protection, human-led response, and inclusive incident response at a fraction of the cost.

Organizations choosing Xcitium gain:

• Prevention-first security instead of reactive detection

• Built-in response with no extra fees

• Kernel-level isolation of unknown threats

• Continuous SOC oversight

• Lower monthly cost per user

Strengthen Microsoft Security—Without Overpaying

Xcitium Managed EDR transforms Microsoft 365 E3 into a high-security, enterprise-ready platform by adding prevention, SOC expertise, and incident response in one integrated solution.

Protect more. Detect less. Pay less.