Who is Fidelis Cybersecurity?
Fidelis Cybersecurity is a cybersecurity vendor that provides platforms for threat detection, response, and data protection across on-premises (on-prem), cloud, and hybrid enterprise environments.
- Network-based threat detection and response (NDR) and visibility for enterprise environments.
- Endpoint Detection And Response (EDR) and endpoint visibility for managed hosts.
- Extended detection and response (XDR) capabilities that correlate telemetry across network, endpoint, and cloud sources.
- Deception and cyber terrain mapping to detect lateral movement and attacker activity inside enterprise networks.
- Managed Detection and Response (MDR) and professional services for Security Operations (SecOps) support.
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More About Fidelis Cybersecurity
Fidelis Cybersecurity focuses on detection, response, and protection capabilities for enterprises that operate complex, distributed infrastructures. Its platforms are used in SecOps centers (SOCs) to monitor network traffic, endpoints, and cloud workloads, and to support threat hunting and incident response workflows. The company positions its technology to help organizations detect threats that evade preventive controls, analyze attacker behavior, and contain attacks across on-prem data centers, remote locations, and public cloud environments.
The Fidelis offering spans several security categories, including Network Detection and Response (NDR), EDR, XDR, and deception technology. In the NDR category, Fidelis ingests and inspects network traffic to surface anomalies, command-and-control activity, and policy violations. In the EDR category, it collects telemetry from endpoints and provides response actions such as process termination, file quarantine, and host isolation. Its XDR approach correlates alerts and telemetry from these domains to produce unified incidents and to reduce noise for analysts.
Deception and terrain mapping capabilities are designed to expose lateral movement and post-compromise activity. Fidelis deploys decoys, lures, and deceptive assets across networks and endpoints and uses these to detect unauthorized access attempts and reconnaissance. Cyber terrain mapping builds an inventory and logical view of assets, users, and communication paths so that security teams can visualize potential attack paths and prioritize defensive measures based on exposure.
From a technology perspective, Fidelis uses Deep Packet Inspection (DPI), behavioral analytics, and threat intelligence to enrich detections. The platforms integrate with common security stack components, such as Security Information and Event Management (SIEM) systems and ticketing tools, to fit into existing SOC processes. RESTful APIs and standard protocols are used to exchange data and automate workflows, and policy engines allow customers to define detection logic and response playbooks aligned with internal security policies.
Enterprises deploy Fidelis Cybersecurity products in sectors that require continuous monitoring and incident response readiness, including government, defense, financial services, and other regulated industries. Typical architectures include sensors in data centers and branch locations, agents on endpoints, and centralized management consoles for analytics, investigation, and reporting. Fidelis also offers MDR and professional services, which provide monitoring and incident handling support operated by Fidelis analysts, as well as advisory and deployment services that align the technology with an organization’s security architecture and regulatory requirements.
In a directory or marketplace context, Fidelis Cybersecurity fits under categories such as NDR, EDR, XDR, deception technology, threat hunting tools, and MDR services. Its portfolio is positioned for organizations that need integrated visibility and coordinated response across network, endpoint, and cloud domains within a single vendor ecosystem.
Our description of Fidelis Cybersecurity. Updated December 2025.
