Operational Technology (OT) systems weren’t designed with cybersecurity in mind. That wasn’t a problem when those systems were air-gapped and manually controlled. Today, it’s a different story.
Modern manufacturing environments run on real-time data and networked infrastructure. And while that makes operations smarter and faster, it also makes them more vulnerable than ever.
At Temple IT, we work inside these environments every day, and what we see isn’t just risky. It’s a hacker’s playground.
The Problem with OT Systems Today
Walk into any factory and you’ll likely find some version of this setup:
- A packaging or processing line powered by a 15-year-old Windows XP machine
- A flat network with no segmentation between OT and IT
- Vendor systems with unknown configurations
- No endpoint protection on legacy controllers
- No real incident response plan
These systems can’t be patched. They often can’t be replaced without major production delays. So businesses do what they think is safe: they leave them alone.
But the second that machine connects to the network, whether to pull orders from an ERP system or report to a dashboard, it becomes a point of entry.
Hackers Know This, and They’re Targeting It
In 2024, nearly three out of four manufacturing organizations reported intrusions in their OT systems. Ransomware groups have shifted tactics from stealing data to stopping production, because downtime is leverage.
We’ve seen attackers spoof emails to redirect wire transfers. We’ve responded to ransomware that took out every endpoint on a factory floor. We’ve seen breaches traced back to a single exposed password tied to an unpatched OT asset.
Hackers don’t need a lot of information. They need one open door. OT gives them plenty.
How Temple IT Secures OT Environments
Securing OT is about more than installing antivirus software. It requires understanding how industrial systems interact with IT infrastructure, where they can safely be isolated, and how to protect what cannot be replaced.
Here’s how we do it:
1. OT and IT Network Segmentation
We separate the business network from the production network. If a phishing email compromises a user’s device, it doesn’t touch the machinery.
2. Vulnerability Scanning on Critical Infrastructure
We run vulnerability scans without touching fragile systems. We identify what is exposed, what cannot be patched, and build compensating controls around it.
3. Real-Time Monitoring and Alerting
We install monitoring that watches for unusual activity across both IT and OT. If something behaves outside its normal baseline, we know about it.
4. Vendor and Remote Access Hardening
We audit every vendor connection and implement strict access controls. No one gets in unless they need to, and we log everything they do.
5. Staff Training for the Plant Floor
Phishing doesn’t stop at the front office. We train production managers and line workers on how to spot threats and what to do when something doesn’t look right.
Real Response in Real Time
Saturday evening. A frantic call comes in from an Oklahoma community college that Temple IT had never worked with.
Their entire network, comprised of three campuses, hundreds of computers, and multiple servers, was encrypted in a ransomware attack. The IT manager, a one-man shop, was overwhelmed. Their legal team, insurance provider, and forensics firm were on the line, but they had no clear path forward.
Temple IT sprang into action. By the next morning, one of our engineers was on-site. He worked side-by-side with the IT manager to isolate and contain the threat, recover servers from offsite backups, and coordinate with the forensics and insurance teams to ensure compliance.
Then came the hard part: over 300 machines were bricked. We built an imaging server on the fly, developed a custom image, and redeployed all workstations, rolling carts from classroom to classroom to make it happen.
Within a week, operations were fully restored.
The client went from paralyzed to operational because Temple IT doesn’t just consult: we embed, act fast, and own the outcome. That’s the power of being an Integrated Technology Partner, not just an outsourced vendor.
Conclusion
OT environments are incredibly efficient and incredibly exposed. You can’t treat them like office systems. You can’t outsource their protection. You need a partner who understands the stakes, the systems, and the urgency.
Temple IT does.
