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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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.
In cybersecurity everything is possible and nothing is unexpected. That is what we have seen over the years at SensorFu. But when we heard that SensorFu Beacon called home from some place where it wasn’t deployed, even that surprised us. For a minute.
In cybersecurity, network segmentation is a foundational defense. We build virtual walls to isolate critical assets and Operational Technology (OT) environments. While an Intrusion Detection System (IDS) is excellent at spotting bad actors once they are inside, it has a fundamental blind spot: it cannot tell you if your walls have actually failed until an attacker exploits them. SensorFu Beacon is designed not to replace your IDS, but to partner with it by turning reactive detection into proactive assurance.
