The security and operation of cyber-physical systems depend on a strong foundation of network segmentation. In mission-critical environments, you must continuously verify - 24/7 - that your segmentation is in place and stays effective. This is what SensorFu Beacon delivers. Let’s get back to basics!
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Security operations centres don’t suffer from a lack of visibility. They suffer from alert fatigue. Modern environments maintain multiple dashboards tracking active alerts, asset inventories, configuration changes and unpatched vulnerabilities. Within exposure management, Attack Path Management (APM) tools have emerged to map this data into visual attack graphs.
Network isolation and segmentation are fundamental to protecting critical operations, particularly where IT networks intersect with high-value OT environments. Organisations invest heavily in firewalls, VLANs, access controls and air-gapped architectures to create strong, trusted boundaries.
Many industrial systems used today were built decades ago to run non-stop for years. In these environments, keeping systems up and running safely is the top requirement. Because of this, companies often prefer to live with older, known risks rather than try new security tools that might cause problems. Many older networks have unrecorded firewall rules, aging equipment, unsegmented networks, and unknown dependencies. These risks are often accepted simply because they have existed for years without causing a breakdown. Cybersecurity teams know they need to fix these issues, but it is hard to know where to start. Many security tools claim to be “passive” or “non-invasive”, meaning they won’t disturb the network, but OT teams need real proof before they can trust those claims.
