ExtraHop Networks

ExtraHop Networks is a cybersecurity company that provides Network Detection and Response (NDR) platforms for real-time threat visibility, investigation, and response across hybrid and multi-cloud environments.

• NDR platform for east-west and north-south traffic analysis
• Real-time threat detection using behavioral analytics and Machine Learning (ML) on network data
• Decryption and inspection of encrypted network traffic for supported protocols
• Deployment options for data centers, public cloud, and hybrid environments
• Security Operations (SecOps) workflows for investigation, forensics, and automated or guided response

More About ExtraHop Networks

ExtraHop Networks focuses on network-based cybersecurity, providing NDR capabilities that security and IT teams apply to monitor, detect, investigate, and respond to threats across enterprise environments. Its offerings analyze network traffic at scale, including data center, branch, and cloud traffic, to surface Indicators of Compromise (IOC) and suspicious behavior that may not appear in endpoint or log-based tools.

The company’s core platform operates by passively observing network packets via Switched Port Analyzer (SPAN), Test Access Points (TAP), or virtual traffic mirroring, then reconstructing L2–L7 transactions and protocols to derive security and performance metadata. Using behavioral analytics and ML on this network-derived telemetry, the platform detects anomalies such as lateral movement, command-and-control communication, data exfiltration patterns, and misuse of enterprise protocols. ExtraHop highlights coverage for common enterprise technologies, including web protocols (HTTP/HTTPS), Domain Name System (DNS), database traffic, file services, and authentication protocols.

ExtraHop Networks positions its NDR capabilities as part of a modern SecOps stack alongside Security Information and Event Management (SIEM) (security information and event management) and EDR/XDR (endpoint detection and response / Extended detection and response (XDR)). While SIEM and log analytics tools focus on log and event data, and Endpoint Detection And Response (EDR) centers on endpoint agents, ExtraHop’s approach uses network traffic as the primary telemetry source. This provides an additional detection channel in cases where endpoints are unmanaged, agents are not deployed, or attackers attempt to evade logging controls.

The platform supports deployment in on-premises (on-prem) data centers, private clouds, and public cloud environments, including integration with cloud-native traffic mirroring features. This allows enterprises with hybrid and multi-cloud architectures to apply a consistent network-based security control plane. ExtraHop’s offerings also integrate with security orchestration, automation, and response (SOAR) systems and other tools, enabling automated or semi-automated workflows such as alert enrichment, case creation, and response actions triggered by NDR detections.

From a protocol and architecture standpoint, ExtraHop emphasizes TLS/SSL decryption for supported traffic, enabling inspection of encrypted flows where organizations have appropriate key access. The system creates derived metrics and security detections from reconstructed transactions, which users can query through dashboards, custom detections, and investigation views. These capabilities are used both by SecOps center (SOC) teams for threat hunting and incident response, and by IT operations teams for visibility into service dependencies and performance issues.

In marketplace and taxonomy terms, ExtraHop Networks fits in the NDR and network security analytics categories. It is relevant for organizations seeking to augment existing security investments with network-centric visibility, to monitor lateral movement inside the enterprise, and to apply packet-level evidence during investigations and post-incident forensics.