Blog Post

Network Segmentation to Enhance OT Cybersecurity

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The proliferation of digital interconnectivity has yielded an ever-expanding attack surface for critical infrastructure and industrial organizations. Securing these operational technology (OT) systems is paramount to maintaining the integrity, safety, and reliability of operations.

What is Network Segmentation?

Network segmentation involves dividing a network into smaller, isolated segments or subnets, each with its own access controls and security measures. Limiting access to sensitive areas effectively minimizes the attack surface, inhibits the mobility of potential threat actors, and prevents the spread of malware across a network.

6 Key Strategies

1. IT/OT Alignment

Collaboration between IT and OT teams is essential for effective planning and implementation of a network segmentation strategy. This may include employee training and awareness initiatives to ensure all stakeholders understand the importance and benefits of segmentation.

2. Identify Critical Assets

Identifying the most critical assets within your OT environment allows you to prioritize their protection, informing a phased implementation approach that minimizes disruption.

3. Network Mapping

A comprehensive discovery and visualization of all entities linked to a network enables teams to better understand data flows, identify vulnerabilities, and simplify monitoring.

4. Define Network Zones

The segmentation plan should group systems with similar security needs into zones and define strict rules for data movement between them.

5. Implementation

Implement the plan with minimal operational disruption by employing a phased approach, gradually rolling out segmentation measures while closely monitoring the impact on operations.

6. Monitor and Maintain

Continuous monitoring of network activity and segment health, regular updates to security protocols, and routine audits ensure your segmentation strategy remains robust over time.

The Takeaway

In an era where cyber threats are becoming increasingly sophisticated, network segmentation is a vital strategy for securing OT environments. By dividing your network into manageable, secure segments, you can protect critical systems, ensure regulatory compliance, and maintain operational resilience.


Contact us today to discuss segmentation strategies tailored to your organization's needs.

Let's collaborate.

Schedule a no-cost consultation today.


solution brief

System Hardening


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Blog Post

Securing Legacy OT Systems

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Legacy operational technology (OT) systems are still heavily relied on by much of the industrial and critical infrastructure sectors. As digital transformation becomes the new norm, these legacy systems present complex challenges to implementing vital cybersecurity measures.

The Challenge

Legacy systems may include components that are decades old– meaning their designs never accounted for modern cyberthreats and the implications of digital convergence.

As these systems reach end-of-life (EOL), lack of updates and patches, discontinuation of vendor support, and incompatibilities with emerging tech compound the risk of critical disruption.

Best Practice Solutions

Network Segmentation

By isolating critical systems, you can reduce the spread of cyberattacks and limit the potential impact of security breaches.

Cybersecurity Audits

Regular reviews of cybersecurity policies and controls can identify vulnerabilities, ensure regulatory compliance, and uncover inefficiencies.

Access Control

Enforcing strong authentication, authorization, and accountability mechanisms ensure only the necessary personnel have access to critical systems.

Incident Response Planning

Developing and routinely testing an incident response plan enables the efficient identification and mitigation of cyber incidents.

The Takeaway

Integrating new tech into legacy OT systems can seem daunting, but with an informed understanding of the risks and a commitment to implementing best practices, you can protect your organization’s critical systems and stay competitive in the digital age of industry.

Contact us today to learn how Champion can help your organization reach resilience.

Let's collaborate.

Schedule a no-cost consultation today.


solution brief

Disaster Recovery


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