What type of monitoring can Forescout provide for OT networks?

Forescout is designed to provide comprehensive network monitoring capabilities tailored for operational technology (OT) networks. Passive network traffic monitoring refers to the method where the Forescout solution observes and analyzes network traffic without actively interfering with or sending requests to network devices. This is particularly important in OT environments where stability and uninterrupted operation are crucial.

By employing passive monitoring, Forescout can identify devices, assess their risk profiles, and monitor their behavior in real time. This approach helps operators maintain visibility into their network without impacting the operational processes, which is essential for the reliability and safety of OT systems. In contrast to active scanning, which might disrupt processes, or real-time packet analysis, which requires deeper engagement with the traffic flow, passive monitoring allows Forescout to gather valuable data quietly and efficiently, ensuring ongoing operational integrity.

The other monitoring types, such as cloud-based monitoring, while useful in certain contexts, do not specifically address the needs of OT networks in the same direct or secure manner that passive monitoring does. Active scanning of endpoints could lead to potential disruptions in sensitive environments and is not typically favored in OT scenarios where devices must remain undisturbed.