Cybersecurity in SCADA Systems: Protecting Critical Infrastructure
SCADA systems sit at the heart of critical infrastructure, from energy and water distribution to manufacturing plants. We explore practical…
OT/ICS Cybersecurity
See what runs in your control systems, prioritize risk and make compliance sustainable: with Industrial Defender ASM and our OT security consulting.
Challenges we meet most often
-
Invisible assets
Without a current OT asset inventory, vulnerability, patch and incident management rely on guesswork.
-
Patching and scanning constraints
Legacy systems can be sensitive to patching and active scanning, and maintenance windows are narrow.
-
Flat networks
Insufficient segmentation between IT and OT, and within OT, makes it easier for a breach to spread.
-
Compliance burden
Compiling IEC 62443, NIST or NERC CIP evidence by hand is slow and error-prone.
Our approach
Four steps that start small, get validated and scale with templates.
-
Visibility
Existing data from control systems is collected safely to build the asset inventory and configuration baseline.
-
Risk and vulnerability
Assets are matched to known vulnerabilities and prioritized by impact.
-
Segmentation and access
Zones and conduits are defined, and remote access and IT–OT crossings are brought under control.
-
Monitoring and compliance
Continuity comes from anomaly detection and built-in compliance templates.
Articles on this topic
IEC 62443: A Practical Look at the OT Cybersecurity Standard
IEC 62443 is the global cybersecurity standard for industrial automation and control systems. We summarize its parts, security levels, and …
OT Network Segmentation: The Purdue Model, DMZs and IEC 62443 Zones
On a flat OT network a single breach can affect all production. A practical segmentation approach built on the Purdue Model, DMZs and the I…
Key concepts behind this solution
With short, plain definitions in our glossary.
Frequently asked questions
How does OT security differ from IT security?
In OT the priority is usually availability and safety before confidentiality. Legacy systems can be sensitive to patching and active scanning, many industrial protocols were designed without authentication, and downtime is expensive.
Is implementing IEC 62443 mandatory?
IEC 62443 is an international standard series; whether it is mandatory depends on the sector and applicable regulation. Many organizations use it as a reference framework when building an OT security program.
Is active scanning safe on an OT network?
Uncontrolled active scanning can cause problems on some control devices. That is why OT inventories are usually built through passive monitoring or by safely collecting existing data from the control system.
Where should we start?
Most programs start with asset inventory: without knowing what exists, where it is and what version it runs, segmentation, vulnerability and compliance work have no solid footing.
Let’s plan your project together
Share your goals and current systems and we will shape the right approach together.