Forescout

Forescout is a cybersecurity company that provides network security, device visibility, and automated control across IT, Internet of Things (IoT), Operational technology (OT), and cloud environments for enterprises and public-sector organizations.

• Network and device visibility across managed, unmanaged, IoT, OT, and cloud-connected assets
• Network Access Control (NAC) and policy-based segmentation for enterprise environments
• Automated security orchestration, response, and compliance workflows
• Risk and posture assessment for devices and networks at scale
• Security integrations with third-party IT, security, and infrastructure platforms

More About Forescout

Forescout focuses on enterprise cybersecurity with an emphasis on discovering, classifying, and controlling every device that connects to an organization’s networks, whether on-premises (on-prem), in data centers, or in hybrid and multi-cloud environments. Its platform is typically deployed in large organizations such as global enterprises, critical infrastructure operators, healthcare providers, and government agencies that manage heterogeneous environments with IT, IoT, and OT assets.

The company’s offerings can be grouped into several core solution areas: device discovery and classification (asset management / security), NAC (NAC / zero trust network access), network segmentation (network security), device posture and compliance monitoring (endpoint and network security), and security orchestration and automation (SOAR / Security Operations (SecOps)). Forescout technologies are designed to operate agentlessly where needed, using network-based monitoring, protocol analysis, and integrations with infrastructure and security tools to identify devices and infer context such as device type, Operating System (OS), ownership, and security posture.

From an architectural perspective, Forescout deployments typically integrate with network infrastructure such as switches, wireless controllers, Virtual Private Network (VPN) gateways, and firewalls using standards like 802.1X, RADIUS, Simple Network Management Protocol (SNMP), and API-based interfaces. The platform often participates in zero trust and segmentation architectures by serving as a policy and enforcement layer that can quarantine or segment devices, enforce access-control policies, and adjust security controls based on real-time risk scoring. In OT and industrial environments, Forescout tools support visibility into industrial control systems and protocols, aligning with security architectures for critical infrastructure networks.

Forescout also offers capabilities that feed into SecOps workflows, including integration with Security Information and Event Management (SIEM), endpoint security, vulnerability management, and ticketing platforms. These integrations allow security teams to correlate device context with alerts, trigger automated responses such as network isolation or configuration changes, and maintain compliance with internal policies and external regulations. The platform’s device and network intelligence is used to maintain an accurate, current inventory of assets across IT, IoT, and OT, which supports initiatives such as zero trust, incident response, and audit readiness.

In marketplace and directory taxonomies, Forescout fits within categories such as network security, NAC, zero trust network access, device and asset visibility, IT/OT security, IoT security, and security orchestration and automation. Its offerings are positioned for organizations that require broad, continuous visibility and control across diverse device types and complex, hybrid infrastructures.