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Expel Unveils Email Threat Defense, Extends MDR Reach

Expel

New integrations bolster Expel’s comprehensive protection against phishing, BEC, and inbox-based attacks

Expel, a leader in managed detection and response (MDR), has unveiled a significant enhancement to its MDR offering, extending protection to one of the most prevalent and dangerous threat vectors: email. By integrating with industry-leading solutions—Proofpoint, Abnormal Security, and Sublime Security—Expel empowers organizations to detect and disrupt email threats earlier in the attack lifecycle, helping reduce overall risk and strengthen cybersecurity resilience.

“Identity-based incidents, largely originating from emails, made up 68% of all incidents among Expel customers last year,” said Yonni Shelmerdine, Chief Product Officer, Expel. “Incorporating email threat data enables us to identify and block attacks as soon as they hit the inbox, and gives customers insight into the threat actors working to gain access to their organization. We’re delivering the most comprehensive MDR solution in the market, and these capabilities further solidify that commitment while providing our customers with unparalleled visibility and protection across critical attack vectors.”

As email threats grow more sophisticated—fueled in part by the proliferation of technologies like generative AI—security teams are struggling to manage increasing alert volumes. Expel addresses this challenge with proprietary, purpose-built detections designed specifically for leading email security platforms. These detections reduce false positives, allowing teams to focus on real threats without being bogged down by alert fatigue.

By enabling earlier threat detection and rapid response, Expel helps organizations proactively address risks before they escalate. The company’s solution seamlessly integrates with leading email security tools, layering in rich contextual data from endpoint, user, and network activity. This multi-dimensional view enables deeper threat correlation and faster, more effective mitigation.

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This latest expansion is part of Expel’s broader commitment to securing the most frequently targeted areas of enterprise infrastructure. Leveraging a tech-agnostic architecture, Expel continues to enhance its MDR coverage across a wide array of environments—offering over 130 integrations spanning endpoints, cloud, Kubernetes, SaaS, networks, SIEM, email, identity, and beyond.

By aligning advanced detection capabilities with a comprehensive, integrated approach, Expel helps customers maximize ROI from their current security investments—while elevating protection across their most critical digital assets.

“As email-borne attacks grow increasingly sophisticated and targeted, businesses require comprehensive security solutions that prevent, detect, and respond to threats before they impact business operations. Our upcoming integration with Expel aims to address our customers’ critical security challenges by delivering automated and intelligent protection against both commoditized and advanced email-based threats.” Colin Jones, president, Sublime Security.

“Socially-engineered attacks targeting people are increasing in both volume and sophistication as a result of the rise of malicious AI. As business leaders face these attacks, this integration with Expel enables joint customers to proactively secure against human vulnerability—stopping threats earlier and protecting people with AI-powered defenses.” Stephanie Goodman, VP of Global Alliances, Abnormal AI.