Operational Technology · Building Automation
Cybersecurity for the Systems That Power Your World
We help organizations understand, secure, and strengthen the systems that power their buildings and critical operations.
Built around the systems that matter
The systems behind your operations.
The most important systems are often the ones nobody sees. That's where FortressGuard operates.
Services
Security, built around your operations.
Our methodology
Six phases. One resilient operation.
CASTLE™ is the methodology behind every FortressGuard OT engagement, providing a repeatable path from visibility and risk understanding to stronger defenses and sustained resilience.
FAQ
Straight answers. No jargon.
The questions facilities directors and plant leaders ask us first.
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01
What is building automation cybersecurity?
It is cybersecurity for the systems that run the building. HVAC, BMS, lighting, access control, elevators, energy systems, and facility controls are increasingly connected to networks and remotely accessible. We map those connections, identify exposure, control access, segment critical systems, and strengthen security while keeping the building running.
02
What does an OT or building automation assessment include?
An assessment gives you a clear picture of what is connected, how it communicates, where it is exposed, and what needs attention. We identify assets and connections, review network architecture and remote access, evaluate vulnerabilities and security controls, assess operational risk, and document prioritized findings with practical recommendations. You leave with a clear understanding of your current posture and a roadmap for what to fix first.
03
Will an assessment disrupt our building or plant operations?
No. We design assessments around operational continuity. Our team uses passive discovery and non-disruptive methods wherever possible, with any active testing carefully scoped, scheduled, and coordinated with your IT, controls, and operations teams. We never treat a live building or production environment like a lab.
04
Can you assess legacy building and control systems?
Absolutely. Legacy systems are often where the greatest visibility and security gaps exist. We assess older BMS, HVAC, PLC, controllers, supervisory systems, and building networks alongside newer technologies, accounting for systems that cannot be patched, replaced, or taken offline easily. Our recommendations focus on practical risk reduction without requiring you to replace working equipment prematurely
05
Can FortressGuard scale an assessment to our environment?
Absolutely. We tailor the assessment to the size, complexity, and operational requirements of your environment, from a single facility or plant to multi-site operations. We scope the right level of effort, testing, and deliverables without overengineering the engagement or disrupting operations.
06
Can you help us fix the issues you find?
We do more than deliver a report. After the assessment, we can help prioritize findings, develop a practical remediation roadmap, and support the implementation of technical and security improvements. Whether you need targeted remediation or ongoing support, we can stay involved through the next stage.