Cyber Fundamentals (CyFun)
What Is Cyber Fundamentals?
Cyber Fundamentals, also known as CyFun, is a cybersecurity framework designed to help organisations of all sizes build a strong security foundation. Developed with input from national security centres like the National Cyber Security Centre – Ireland (NCSC-IE) and aligned with international standards, it outlines best practices across core areas of cybersecurity.
Think of it as a roadmap that breaks down complex security tasks into manageable actions. Instead of chasing shiny tools or buzzwords, CyFun helps businesses prioritise what really matters.
Practical Cybersecurity, Not Paralysis
CyFun is designed for real-world use — not just for IT professionals. It avoids unnecessary jargon and provides actionable steps based on your organisation’s size, risk profile and digital maturity.
A Risk-Based Approach That Grows With You
CyFun in Ireland’s Compliance Framework
Source: NCSC, CyFun
Key Components of the Cyber Fundamentals Framework
Identify
Understand what needs protecting – your systems, data, and digital assets.
Protect
Implement safeguards like strong authentication, access controls, and staff training.
Detect
Monitor systems for suspicious activity and maintain clear logging practices.
Respond
Have a plan in place to deal with incidents quickly and effectively.
Recover
Restore operations with minimal downtime through backups and recovery plans.
CyFun is fundamentally referenced from the NIST framework

Choosing NexGen Cyber for Your Cyber Fundamentals Assessment
Business-Focused, Risk-Based
Our team breaks down complex cybersecurity concepts into clear, actionable steps aligned with your business goals. Whether you’re seeking Basic, Intermediate, or Advanced CyFun implementation, we help you understand where your current risks lie and how to fix them.
Compliance-Ready, Future-Proof
As new regulations like NIS2 and DORA come into force, our assessments prepare you to meet evolving requirements with confidence. Cyber Fundamentals provides the groundwork — NexGen Cyber helps you build on it securely.
Hands-On Assessment & Practical Roadmap
We don’t just give you a report — we give you a prioritised action plan. Our Cyber Fundamentals Assessment includes:
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A tailored cyber risk profile
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Gap analysis
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Maturity scoring & improvements
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Staff awareness & incident readiness
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Optional support with NIS2, or ISO 27001
Ongoing Support & Trusted Advisors
We’re not just here for a one-off audit. Our clients see us as long-term partners in cybersecurity success. From awareness training to board-level briefings, we empower your entire organisation to stay secure.