MDR for endpoint security

Fast and deep endpoint threat detection

Go beyond standard alerts. Our 24x7 experts enhance your EDR/XDR to find and stop the hidden attacker activity that others miss.

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Expel integrates with top endpoint tools such as Crowdstrike Falcon, SentinelOne, Paloalto Cortex, and Microsoft Defender

Our difference

Find incidents in a sea of alerts

Make your endpoint threat detection even smarter. Expel helps you see what’s actually happening on your network and devices.

Maximize your EDR investment

Expel integrates directly with EDR/XDR tools like CrowdStrike or Microsoft Defender, giving you deep analysis of process, file, and network telemetry.

Find post-exploitation activity faster

Your security tools are enhanced with a large library of behavioral detections designed to spot sophisticated activity that vendor alerts alone can’t.

Get broad MITRE ATT&CK coverage

Gain 24×7 monitoring across the entire attack lifecycle, covering all MITRE ATT&CK tactics to the right of initial access.

Expel MDR

Our approach to
endpoint security

Expel transforms a flood of endpoint alerts into clear, simple findings. Our endpoint threat detection strategy involves applying custom Expel-written detections to find even the most complex threats. From there, we connect that information with what’s happening across all your other security tools – in your cloud, identity, and SaaS apps, and more. Plus, if we spot suspicious activity, Expel can automatically kill processes or contain hosts to prevent damage.

Ruxie automatically retrieves EDR data and endpoint telemetry to correlate context for host-based alerts into a unified attack picture, completely eliminating manual tool pivots. She then prepares precise response actions—like killing processes or containing hosts—for our SOC experts to trigger using your tools as soon as the attack is confirmed.

MDR Benefits

Why Expel?

Expect more than just better endpoint threat detection. We help your entire security program grow stronger, starting with your existing endpoint tools.

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A smarter security stack

Unlock the full potential of your existing security tools with layered, high-fidelity detections built to deliver the outcomes you expect.

Stop attacks at the source

We detect the specific tactics and tools used to introduce malicious executables, to stop threats before they can detonate.

Continuously improve your detections

Your detection coverage is continually refined based on real-world threat experience to keep you ahead of attackers.

Connect the dots between attack surfaces

Your team gets the full story, using endpoint data to enrich other alerts, like seeing the process behind a suspicious network connection.

Get answers, not just alerts

You receive comprehensive findings with clear instructions on what to do next, so your team can move faster with all the context they need.

Endpoint threat detection resources

Expel Quarterly Threat Report, Q1 2025: Endpoint threats

Volume III of our Q1 2025 Quarterly Threat Report summarizes key findings for endpoint threats. Learn what to focus on right now.

Connecting network and endpoint data to find attackers

Piece together evidence from endpoint & network detection and response tools, like CarbonBlack, to tell the complete story of an incident.

Is Microsoft Defender for Endpoint good?

We've integrated Microsoft Defender for Endpoint! Our SOC analysts explain why they love it and how they use it to triage alerts quickly.

Frequently Asked Questions

Do I need to deploy a new endpoint agent to use Expel?

No. Expel works with what you already have deployed. If you already have an EDR deployed such as CrowdStrike, Microsoft Defender, SentinelOne, or Carbon Black, Expel integrates with it directly via API to ingest the telemetry and alerts directly from the tool. No additional agent is required. This minimizes deployment complexity and preserves your current endpoint architecture while adding 24×7 expert analyst coverage on top.

Which endpoint detection and response (EDR) solutions does Expel support?

Expel supports all the top EDR solutions, including CrowdStrike Falcon, Microsoft Defender for Endpoint, and SentinelOne. Expel works with all of them (and more), layering 24×7 expert analyst coverage, cross-surface correlation, and active response to maximize your EDR investment.

How does Expel provide endpoint security for macOS and Linux environments?

Expel monitors macOS and Linux endpoints through whichever EDR you have deployed. CrowdStrike Falcon, SentinelOne, and Microsoft Defender all provide cross-platform coverage. Our analysts are experienced with macOS and Linux-specific attack techniques including shell persistence, cron job abuse, and kernel exploits.

How does Expel handle endpoint threats on remote or unmanaged devices?

Expel focuses monitoring and response on managed endpoints where your EDR agent is deployed. For unmanaged or BYOD devices, we monitor network and identity signals for anomalous behavior originating from those devices, flagging suspicious access patterns even when we cannot see the device directly. For best results, we encourage deployment of your EDR agent to all applicable devices.