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OT Network segmentation

OT assets demand extensive intra-network communication.  Additionally, cloud connectivity and remote access further increase complexity.

We provide OT network segmentation from architecture to implementation, including firewall zoning, microsegmentaton and PVLAN concepts.

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What is OT Network segmentation?

OT (Operational Technology) segmentation is a cybersecurity strategy that divides an OT network into smaller, isolated segments. This practice helps to prevent cyberattacks from spreading across the entire network, thereby protecting critical assets. By segmenting the network, organizations gain better control and visibility over their systems, enhancing their ability to secure sensitive data and devices.

OT segmentation is particularly important in environments where industrial control systems (ICS) are used, as it ensures the safety, reliability, and real-time operation of these systems.

What are the benefits?

Improved Security

OT segmentation limits the ability of cyber threats to move laterally within the OT network, reducing the risk of widespread damage.

Control and Visibility

By dividing the network into smaller, isolated zones, organizations can better monitor and manage each segment, ensuring that security measures are appropriately applied based on their risk levels.

Protect the crown jewels

OT network segmentation helps safeguard the most critical systems and data by isolating them from less secure parts of the network.

Regulations & Compliance

OT segmentation aids in meeting industry-specific regulations such as NIS2 & ISO 2700 by separating sensitive data and systems, thus simplifying compliance efforts.

What will you get?

  • A detailed architecture document outlining the segmentation strategy, including the identification of zones and conduits, and the rationale behind the segmentation decisions based on the risk they pose for your industrial environment.
  • Configuration guidelines outlining the necessary steps for configuring network devices and firewalls to enforce and strengthening your segmentation policies and implementation of these steps in your OT network.
  • Provide evidence of compliance after implementing the segmentation strategy of the OT network towards relevant regulatory requirements ( NIS2) or frameworks such as IEC 62443 or NIST SP 800-82.
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How do we work?

  1. We start with a thorough assessment of the current OT network environment, identify critical assets & risks and tune the segmentation requirements to your specific security needs.
  2. Based on the assessment, we define the necessary zones & conduits and enforce them on your network & security equipment.
  3. All changes are carefully planned and tested with an impact analysis to avoid possible downtime.
  4. Post-implementation we plan a follow up meeting to check on the network security components and effectiveness of the actions that have been effectuated.

Why is this a priority?

OT network segmentation is a priority because it significantly enhances the security and resilience of critical infrastructure. By isolating different parts of the network, we can prevent cyber threats from spreading, protect sensitive data, and ensure the reliable operation of industrial control systems. This proactive approach not only safeguards against potential attacks but also helps to meet regulatory requirements and maintain operational efficiency.