Expel: 24/7 Managed Detection and Response for Modern Security
Expel provides transparent Managed Detection and Response (MDR) for cloud, SaaS, and on-prem environments, using automation to give security teams more clarity.
Overview
Expel is a leading provider of Managed Detection and Response (MDR) services, specializing in helping organizations minimize business risk through 24/7 security monitoring, investigation, and response. Founded in 2016 by security industry veterans, Expel was established to solve the common frustrations associated with traditional managed security services—namely, a lack of transparency, excessive noise, and slow response times. The company is headquartered in Herndon, Virginia, and has rapidly become a dominant player in the cybersecurity operations space.
Expel’s service portfolio spans across several critical areas:
- Managed Detection and Response (MDR): Continuous monitoring of endpoints, networks, and SIEMs.
- Cloud Detection and Response: Specialized security for cloud workloads and infrastructure.
- SaaS Security: Monitoring for critical business applications like Slack, Okta, and Microsoft 365.
- Threat Hunting and Vulnerability Prioritization: Proactive identification of hidden threats and guidance on which patches matter most.
The company serves a diverse range of clients, from mid-market firms to large enterprises across sectors such as technology, healthcare, finance, and retail. By leveraging an API-first approach, Expel integrates with the security tools its customers already own, providing a unified view of their security posture without the need for expensive data duplication. Their market presence is characterized by high customer satisfaction ratings and consistent recognition as a "Leader" in major analyst reports, such as the Forrester Wave for Managed Detection and Response.
Positioning
Expel positions itself as the "transparent MDR," a strategic counterpoint to the traditional, opaque MSSP model. Their messaging focuses heavily on the concept of "Security that makes sense," targeting security leaders who are overwhelmed by alert fatigue and frustrated by vendors that offer little visibility into their operations. While many competitors position themselves as a replacement for internal security teams, Expel positions itself as a force multiplier—an extension of the customer’s team that provides the tools and expertise to make the entire security function more effective.
In terms of market segmentation, Expel targets organizations that have invested in modern security tooling but lack the 24/7 headcount or specialized cloud expertise to manage it effectively. Their brand voice is intentionally distinct—using plain English instead of industry jargon, and employing a relatable, human-centric tone that resonates with overworked practitioners. They differentiate from "legacy" competitors by highlighting their cloud-native capabilities and API integrations, and from "automated-only" startups by emphasizing the quality of their human analysts. Ultimately, Expel’s positioning is built on the promise of providing not just security, but peace of mind through radical visibility and measurable risk reduction.
Differentiation
The core of Expel’s product advantage is Expel Workbench™, a proprietary security operations platform designed to integrate seamlessly with a customer's existing security stack. Unlike competitors that require customers to rip-and-replace their tools or ingest all data into a proprietary data lake (incurring massive costs), Expel’s "bring your own tech" (BYOT) strategy allows them to integrate via API with over 100 different security signals across endpoint, network, SIEM, and cloud providers.
Key technical differentiators include:
- Cloud-Native MDR: Expel offers specialized monitoring for cloud infrastructure (AWS, Azure, GCP) and SaaS applications (Microsoft 365, Okta, Salesforce, GitHub), addressing the modern attack surface where traditional MDRs often struggle.
- Automated Remediation: Through "Expel Ruxie," their automation bot, the platform performs initial triage and evidence gathering at machine speed, allowing human analysts to focus on high-context decision-making.
- Transparent Investigation Workflows: The Workbench provides a real-time, shared view of every alert and investigation. Customers can see exactly what an Expel analyst is doing, what queries they are running, and what the findings are as they happen.
- Resilient Signal Processing: Their platform uses advanced logic to suppress noise and false positives, ensuring that notifications sent to customers are high-fidelity and actionable, often including pre-written remediation scripts or "one-click" fix options.
Ideal Customer Profile
Expel is designed for organizations that have moved beyond basic security and are looking for a high-transparency partnership.
- Company Size: Typically Mid-Market (500+ employees) to Large Enterprise, though any organization with a high-value digital footprint is a candidate.
- Industry Focus: Highly targeted by organizations in Finance, Healthcare, Technology, Manufacturing, and Retail where downtime or data breaches carry significant financial/reputational risk.
- Technical Maturity: Moderate to High. The ideal customer already has (or is currently deploying) modern security tools like EDR (CrowdStrike, SentinelOne) and Cloud infrastructure (AWS/Azure).
- Team Composition: Organizations with a small-to-medium internal security team that needs 24/7 coverage or specialized expertise in cloud/SaaS threats.
- Budget: Organizations that recognize the "total cost of ownership" of a DIY SOC (hiring 5-6 analysts for 24/7 coverage) and prefer a predictable OpEx model.
Best Fit
Expel is an exceptional fit for organizations in the following scenarios:
- The "Alert Fatigue" Solution: Best for teams overwhelmed by thousands of daily security signals who need a partner to filter the noise and only surface high-fidelity, actionable incidents.
- Cloud-First Environments: Organizations heavily invested in AWS, Azure, or GCP, as well as SaaS-heavy stacks (Slack, Okta, Microsoft 365), benefit from Expel's native cloud security posture management and monitoring.
- Hybrid SOC Models: Ideal for companies that want to keep their existing security tools but need 24/7 expert "eyes on glass" without the massive overhead of hiring a full internal night shift.
- MDR for Modern Stacks: When a company wants to move away from traditional, black-box MSSPs toward a transparent, API-driven Managed Detection and Response (MDR) provider that works within the customer's own tools.
Offerings
- Expel MDR (Managed Detection and Response): The flagship offering providing 24/7 monitoring across endpoints, network, and SIEM. Includes investigation, triage, and remediation guidance.
- Expel MDR for Cloud: Specialized monitoring for AWS, Azure, and GCP. It focuses on cloud-native threats, such as resource hijacking, credential theft, and misconfigurations.
- Expel MDR for SaaS: Extends protection to critical business apps like Microsoft 365, Google Workspace, Okta, Slack, Duo, and Salesforce.
- Expel Vulnerability Prioritization: A service that ingests data from scanners (Qualys, Tenable, Rapid7) and tells you which vulnerabilities are actually being exploited in the wild, helping you focus patching efforts.
- Expel Threat Hunting: Proactive, human-led investigations designed to find sophisticated attackers who have bypassed automated defenses.
- Expel Phishing: A managed service for your "Report Phishing" button, where Expel analysts triage employee-reported emails and remove malicious ones from your environment.
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Introduction
Welcome to the Enterprise Evaluation Guide for Expel. In an era where security teams are overwhelmed by "alert fatigue" and a sprawling attack surface, Expel has emerged as a leading Managed Detection and Response (MDR) provider. Unlike traditional Managed Security Service Providers (MSSPs) that often operate as "black boxes," Expel provides a transparent, API-driven platform called Workbench™ that integrates directly with your existing security stack.
This guide is designed for CISOs, SOC Managers, and IT Directors who are looking to augment their security operations with 24/7 monitoring, proactive threat hunting, and automated remediation. You will learn about Expel's unique approach to cloud security, its integration capabilities with major EDR and SIEM providers, and the organizational requirements needed to transition from reactive firefighting to a streamlined, platform-led security posture. By the end of this guide, you will have the specific criteria needed to determine if Expel is the right partner to protect your business.
Key Features
- 24/7 Managed Detection and Response (MDR): Continuous monitoring of your environment by expert analysts who investigate every lead and only alert you when a human intervention is actually required.
- Expel Workbench™: A transparent platform that allows you to see exactly what Expel’s analysts see. You can track investigations in real-time, view the full "audit trail" of an incident, and run reports.
- Cloud Security Monitoring: Native protection for AWS, Azure, and GCP that goes beyond basic logs to include configuration monitoring and identity-based threat detection.
- Automated Remediation (Expel Ruxit): A proprietary automation engine that handles repetitive tasks, such as enriching alerts with threat intelligence or performing initial containment steps, allowing humans to focus on complex decision-making.
- SaaS Security: Specialized monitoring for critical business applications like Slack, Salesforce, and Microsoft 365 to detect account takeovers and data exfiltration.
- Proactive Threat Hunting: Regular, hypothesis-driven searches across your environment to find hidden attackers that automated tools might miss.
- Vulnerability Prioritization: Expel correlates your vulnerability scan data with real-world threat intelligence to tell you which patches matter most right now.
Use Cases
- Use Case 1: Stopping Ransomware in its Tracks. A mid-sized manufacturing firm uses Expel to monitor their CrowdStrike alerts. Expel identifies a "hands-on-keyboard" attacker moving laterally via PowerShell at 2:00 AM. Expel automatically isolates the infected host and notifies the customer's on-call lead, preventing data encryption.
- Use Case 2: Securing the "SaaS Perimeter." A high-growth tech company uses Expel to monitor Okta and Slack. Expel detects a successful login from an unusual IP address followed by a mass download of files in Google Drive. Expel flags this as a compromised credential and initiates a password reset via the integration.
- Use Case 3: Cloud Misconfiguration Detection. A financial services firm moving to AWS uses Expel to monitor for insecure S3 buckets and IAM role over-privileging. Expel alerts the DevOps team to a publicly accessible database before it can be exploited, providing specific remediation steps.
- Use Case 4: Augmenting a Lean Security Team. A healthcare provider with only two security engineers uses Expel as their 24/7 SOC. Expel filters out 99% of the noise, allowing the internal team to focus on high-level strategy and compliance while Expel handles the daily "detect and respond" grind.
Pricing Models
Expel uses a transparent, predictable pricing model designed to align with modern IT environments.
- Primary Metric: Pricing is typically based on the number of protected assets (endpoints/users) or log volume/ingestion tiers, depending on the specific service mix.
- Platform Fee: There is generally a base fee for access to the Expel Workbench platform and 24/7 SOC services.
- Tiered Offerings: Pricing scales based on the scope of coverage (e.g., just Endpoint vs. Full Stack including Cloud and SaaS).
- No Hidden "Per-Alert" Fees: Unlike some MSSPs, Expel does not charge more if you have a "noisy" month with high alert volume; the focus is on outcomes.
- Additional Costs: Specialized services like advanced Threat Hunting or Incident Response (IR) retainers may be added as line items.
Technical Requirements
- Supported EDR/EPP: Requires a supported endpoint agent (e.g., CrowdStrike Falcon, SentinelOne, Microsoft Defender for Endpoint, Carbon Black).
- Cloud Access: API permissions/roles in AWS (IAM), Azure (App Registrations), or GCP to allow Expel to pull activity logs and configuration data.
- Network Connectivity: For on-premise logs, a lightweight "Expel Assembler" (virtual machine) may be required to securely tunnel logs to the Expel cloud.
- Browser Compatibility: Access to the Expel Workbench requires a modern web browser (Chrome, Firefox, Safari, Edge).
- Identity Provider: Integration with an IDP (Okta, Azure AD) is highly recommended for secure access and SaaS monitoring.
Business Requirements
To successfully adopt Expel, organizations should meet the following business prerequisites:
- Tool Ownership: You must own (or be willing to purchase) the underlying security tools (EDR, SIEM, Cloud providers) that Expel will monitor.
- Defined Incident Response Policy: While Expel handles detection and investigation, your internal team needs a clear "hand-off" process for when Expel requests a remediation action (e.g., isolating a host).
- Stakeholder Buy-in: Success requires alignment between the CISO, IT Operations, and Cloud Architecture teams, as Expel will require API access to their respective environments.
- Communication Readiness: Your team should be prepared to use Slack or Microsoft Teams as the primary communication channel for real-time incident collaboration.
- Process Maturity: A willingness to move away from "email-based" security ticketing toward a more automated, platform-centric workflow.
Implementation Timeline
Expel is known for one of the fastest "time-to-value" metrics in the MDR space due to its API-first approach.
- Phase 1: Discovery & Planning (Week 1): Kickoff meeting, identifying all log sources (EDR, Cloud, SaaS), and establishing communication channels (Slack/Teams).
- Phase 2: Technical Setup & Integration (Week 1-2): Connecting Expel Workbench to your security stack via APIs. This usually takes minutes per integration rather than days of hardware installation.
- Phase 3: Tuning & Baseline (Week 2-3): Expel’s analysts review the incoming alert volume, suppress known-good activity, and tune the "Expel Ruxit" engine to your specific environment.
- Phase 4: Training & Go-Live (Week 4): Walkthrough of the Workbench platform for your internal team, finalization of escalation paths, and official transition to 24/7 monitoring.
- Note: Timeline can be extended if the customer has highly complex legacy on-premise environments requiring custom log ingestion.
Support Options
- Dedicated Customer Success Manager (CSM): Most enterprise accounts are assigned a CSM to handle business reviews, ROI tracking, and long-term strategy.
- Real-Time Collaboration: Primary support and incident communication happen via shared Slack or Microsoft Teams channels, providing instant access to analysts.
- 24/7 SOC Access: Direct line to the Security Operations Center for urgent inquiries or incident escalations.
- Expel Knowledge Base: Comprehensive documentation on integrations, platform features, and security best practices.
- Expel Academy: Training modules for your internal team to learn how to use the Workbench and interpret security signals.
- Service Level Agreements (SLAs): Tiered response times for critical, high, and medium incidents.
Integration Requirements
Expel’s architecture is built on "Workbench," a platform that integrates natively with over 100 security products.
- API-First Connectivity: Expel connects directly to your tools' APIs (e.g., CrowdStrike, SentinelOne, Palo Alto Networks) to pull alerts and telemetry. No proprietary agents are required on your endpoints.
- Supported Categories: Deep integrations across EDR/EPP, SIEM, Network (Firewall/IDS), Cloud Infrastructure (AWS/Azure/GCP), and SaaS (Okta, Duo, MS365, Google Workspace).
- Bi-Directional Sync: Expel can often push actions back to your tools, such as isolating an endpoint or disabling a compromised user account.
- Data Privacy: Because Expel queries your tools via API, you maintain ownership of your data. Expel only pulls the metadata and telemetry needed for investigation.
- SIEM Interoperability: Can work alongside your existing SIEM (Splunk, Sumo Logic) or act as a "SIEM-less" solution by aggregating data directly from point products.
Security & Compliance
Expel is built for highly regulated industries and maintains a robust security posture:
- Certifications: SOC 2 Type II compliant, ensuring rigorous controls over security, availability, and processing integrity.
- Data Residency: Options for data storage and processing that align with regional requirements (US-based SOC operations).
- Access Control: Support for SAML-based Single Sign-On (SSO) and Multi-Factor Authentication (MFA) for all users accessing the Workbench.
- Transparency & Audit: Every action taken by an Expel analyst is logged within the Workbench, providing a full audit trail for compliance auditors.
- Privacy-First: Expel focuses on security metadata and typically avoids ingesting PII (Personally Identifiable Information) unless necessary for an investigation.
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