OT Cyber Security
OT cyber security is the protection of industrial control systems and critical infrastructure from cyber threats, ensuring safety, reliability, and continuous operations.
Critical Infrastructure Security
IEC 62443 is the global standard for securing industrial control systems — the systems that power critical services like energy, water, manufacturing, and transportation. At Deftec, we apply this standard to help ensure critical infrastructure remains resilient against cyber threats without compromising safety or reliability.
It provides a comprehensive framework covering the entire lifecycle of these systems — from design and implementation through to operation and ongoing maintenance. This makes IEC 62443 the foundation of how we help our clients protect what matters most, keeping essential services secure, compliant, and built to last.
Information Security Management
ISO 27001 is the internationally recognised gold standard for information security management. It provides a structured framework for protecting sensitive data, managing risks effectively, and demonstrating trustworthiness to customers and partners.
At Deftec, we embed ISO 27001 principles into everything we do. This approach helps organisations strengthen their IT security, ensure ongoing compliance, and build confidence that their information is being protected to the highest standard.
Cybersecurity Frameworks
The National Institute of Standards and Technology (NIST) provides some of the most practical and widely adopted frameworks for improving cybersecurity. From the Cybersecurity Framework (CSF) to specialised guidance for industrial systems such as NIST SP 800-82, these resources help organisations assess their current security posture and identify areas for improvement.
At Deftec, we use NIST as a roadmap for strengthening both IT and OT security. By aligning with these proven frameworks, we help clients build resilience against today’s cyber threats while preparing for the challenges of tomorrow.
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“Where trusted standards meet real-world resilience.”
Standards Aligned
Built on best practice
Our approach follows IEC 62443, ISO 27001, and NIST frameworks, giving you proven protection tailored to both IT and OT systems.
Stronger Resilience
Defend against disruption
We help secure critical infrastructure so operations stay safe, reliable, and ready to withstand evolving cyber threats.
Clear Guidance
Simplifying the complex
Cyber standards can feel overwhelming — we break them down into practical steps that make sense for your business.
Future Ready
Prepared for what’s next
With scalable frameworks and continuous improvement, we ensure your security posture grows as technology and risks evolve.