Systems nobody has inventoried
If you cannot list what is on the network, you cannot protect it. A good inventory is the foundation for everything that follows.
Cyber Security for OT and ICS
Practical cybersecurity for the building and industrial control systems that keep your facility running, designed around safety, availability, and the realities of your operation.
The RJY Approach
Cybersecurity for Operational Technology and Industrial Controls
Modern facilities depend on a secure operational technology layer to protect critical infrastructure and maintain uptime. As automation, smart technologies, and IoT devices expand, BAS, HVAC, and other essential systems require stronger cyber protection.
We harden the operational technology layer that modern facilities now depend on. This is where mechanical reliability and cybersecurity converge, and where RJY Group is uniquely positioned.
Cyber Security for OT and ICS Problems We Solve
Remove the conditions that put performance at risk.
Technical problems rarely stay isolated. RJY Group connects symptoms, equipment condition, controls, operating practices, records, and system dependencies so the response addresses what is actually driving risk.
Open remote access
Vendor connections and shared credentials are among the most common weak points. We review who can reach what, from where, and why.
Flat networks
When building systems share a network with everything else, a problem in one place can spread. Segmentation guidance reduces that risk without disrupting operations.
Legacy equipment that cannot be patched
Older controllers are normal in real facilities. We recommend compensating measures that fit equipment you cannot simply replace.
Core Capabilities
The right attention at every layer.
Identify risks early
Identify risks in BAS, HVAC, and critical systems before they are exploited.
Secure access
Secure access so only authorized personnel can control vital systems.
Align with leading frameworks
Align OT environments with leading cybersecurity frameworks.
How We Work
A disciplined path from condition to action.
Discover
Inventory systems, connections, owners, and vendors, and review how access is granted today.
Prioritize
Rank exposure by consequence and effort, and agree a realistic order of work.
Strengthen
Support segmentation, access controls, and documentation, and leave your team with a plan they can maintain.
Scope Priorities
Built around the systems that matter.
- OT/ICS network segmentation
- Secure remote access
- BAS firmware and patch management
- Asset inventory and vulnerability assessment
- Alignment with NIST SP 800-82, NIST SP 800-53, and NERC CIP frameworks
Facility Outcomes
Cybersecurity embedded into BAS, HVAC, and OT systems to block breachesCritical infrastructure protection through secured access, risk detection, and monitoring
Start With the Operating Need
Let’s talk about your control system risk.
Tell us about the systems you rely on, how they are connected, and what is driving your concern. We will help you decide on a sensible, proportionate first step.
Answers for planning the next step.
Use these answers to prepare an internal discussion, records review, or first conversation with RJY Group.
01. Will security work disrupt our operations?
We plan around operations. Assessments begin with passive review wherever possible, and any change that could affect a running system is coordinated with your facility team in advance.
02. Is this different from our IT department’s security program?
Yes, and the two should work together. IT tools and habits do not always suit building and industrial systems, where availability and safety come first. We help bridge the two so responsibilities are clear.
03. Do we have to replace legacy controls to be secure?
Usually not. There are practical ways to reduce risk around older equipment, such as isolating it, tightening access, and monitoring it. We will explain the options and trade-offs plainly.
04. How do we get started?
We would be glad to hear from you. Call our Houston office at (713) 838-1147 or our toll-free line at (866) 989-0869, email sales@rjygroup.net, or send your details through our Contact Us page. Tell us which facility and system you have in mind and what is prompting the conversation, and a specialist will recommend the right first step, whether that is a records review, a site visit, or a scoped proposal.
05. What will we receive when the work is done?
That depends on the scope we agree together, but you can expect clear written records: what we found, what we did, what is still open, and what we recommend next. We confirm deliverables before work begins, so there are no surprises.