Responding Before It Became an Incident — Security Monitoring Prevented an OT Incident in a Technical Facility

For confidentiality reasons relating to the facility's architecture and risk profile, we do not disclose the names of the facility or the parties involved.

An Incident Prevented — Before It Had an Impact

During infrastructure and configuration work in a technical environment, an unforeseen situation arose that could have resulted in operational disruption or unintended communication across network boundaries.

Because the facility was under active monitoring by Guard Automation, the irregularity was detected and addressed immediately — before it had any actual impact.

This illustrates how quickly unexpected situations can arise, and why proactive measures, technical insight, and access to people who understand both systems and processes are essential.

The customer's response afterwards was clear:

”There was a collective cheer for Guard Automation.”

Not because something happened — but because it didn't.

Why OT Security Requires OT Expertise

It can be tempting to apply the same tools and principles across both IT and OT. But the reality is that the threat landscape — and the potential consequences — are fundamentally different.

Cybersecurity in both IT and OT revolves around confidentiality, integrity, and availability.

The difference lies in the order of priority.

IT: C → I → A

Confidentiality and integrity are often prioritised first, while availability may temporarily be sacrificed — for example, during updates or patching — to protect data.

OT: A → I → C

In operational environments, availability comes first to maintain continuous operations and physical control. The integrity of control logic and signals is critical to ensuring safe and correct functionality. Confidentiality remains important, but is rarely the highest priority.

While IT attacks can compromise information, OT incidents can interrupt operations, damage infrastructure, and put people or the environment at risk.

This is why OT security requires domain-specific expertise:

• Understanding how industrial control systems actually operate

• Knowledge of real-time protocols and deterministic logic

• Awareness of how small changes can have system-wide consequences

This expertise cannot be developed through IT training alone. It comes from years of practical experience in automation, operations, and process industries.

Guard Automation — Operational Expertise in Practice

Guard Automation does not develop cybersecurity tools. Our value lies in combining technical expertise with an understanding of the operational environments these tools are designed to protect.

Our approach includes:

• Specialised OT expertise and multidisciplinary advisory services

• Continuous monitoring and incident response through our Security Operations Center (SOC)

• Long-term maintenance and management of OT infrastructure

• Advisory services covering network segmentation, access management, and vulnerability assessments

We understand the processes, technologies, and operational realities of industrial and technical facilities.

When something happens, we are ready to respond — and we know what to look for.

Jan-Terje Sørlie, Chief Technology Officer, Guard Automation

An Evolving Threat Landscape

An increasing number of technical facilities are being connected to cloud platforms, remote access solutions, third-party integrations, and new digital services.

These connections create value — but they also introduce new attack surfaces.

”Many unwanted incidents are not necessarily caused by malicious actors, but by complexity and unclear responsibilities. When different technical environments are connected without a comprehensive understanding of how IT and OT affect each other, small changes can have significant consequences. This is why continuous monitoring and operational insight are absolutely essential,” says Jan-Terje Sørlie, Chief Technology Officer at Guard Automation.