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CyFUN Explained: Ireland

NIS2 Compliance
6 min read
CyFUN Explained: Ireland

In Sligo, a hotel's booking system ground to a halt on a bank holiday weekend. Ransomware had encrypted their critical data. They paid €12,000 in Bitcoin, but the decryption key only partially worked. Their reputation suffered. Bookings plummeted. This is not a hypothetical scenario; it is a stark reality for many Irish SMEs.

Ireland's National Cyber Security Centre (NCSC) understands these threats. They have introduced the Cyber Fundamentals Framework, or CyFUN. CyFUN offers a clear, structured path for Irish SMEs to build robust cybersecurity defences. It is a voluntary framework. It helps businesses navigate the complex world of cyber threats. It also prepares them for upcoming regulations like NIS2.

What Exactly is CyFUN?

CyFUN is a cybersecurity framework. It was originally developed in Belgium. Ireland has adopted it as a co-owner. The NCSC recommends it as a well-recognised, structured tool. It helps entities meet their NIS2 obligations. CyFUN is grounded in the globally respected NIST Cybersecurity Framework (CSF). Specifically, it is based on NIST CSF v1.1, with a transition to v2.0 expected in Q3 2025. This foundation ensures international best practices are at its core.

The framework provides a tiered, risk-based approach to cybersecurity maturity. It allows organisations to be assessed at different levels. This ensures controls are proportionate to risk. While certification is optional, it is a strong and credible route to support compliance. It also serves as a business enabler. It builds trust in supply chains and regulatory contexts. You can find more information directly from the NCSC at NCSC.gov.ie/CyFun.

Why Ireland Embraced CyFUN

The digital landscape is fraught with peril. Irish SMEs face constant cyber threats. The upcoming NIS2 Directive will introduce stringent cybersecurity requirements. Many businesses are unsure how to comply. The NCSC adopted CyFUN to simplify this process. It provides a practical, achievable set of security controls. This helps businesses prepare for NIS2 without overwhelming them.

CyFUN is not the only route to compliance. The NCSC also recognises standards like ISO 27001. However, CyFUN is specifically recommended for its practical, risk-based approach. It is designed to be accessible for SMEs, offering a clear roadmap to enhanced cyber resilience. This flexibility ensures businesses can choose the path that best suits their operations. It also maintains consistency with the Directive's core requirements.

CyFUN's Six Functions: Practical Actions for Your SME

CyFUN structures cybersecurity around six core functions. These functions align with the NIST CSF 2.0. They provide a holistic view of cybersecurity management. Here’s how each function translates into practical actions for your small or medium-sized enterprise:

CyFUN FunctionDescriptionPractical SME Actions
GovernEstablishing and monitoring cybersecurity risk management strategy, risk appetite, and policy.Develop a clear cybersecurity policy. Assign responsibility for cybersecurity. Conduct regular risk assessments. Ensure management understands cyber risks.
IdentifyUnderstanding organisational risks, assets, and vulnerabilities.Maintain an inventory of all IT assets (hardware, software, data). Identify critical business processes. Conduct vulnerability scans. Understand your data flows.
ProtectImplementing controls to prevent cybersecurity incidents.Implement strong access controls, including MFA. Encrypt sensitive data. Provide regular cybersecurity awareness training for staff. Deploy antivirus and anti-phishing solutions. Implement patch management.
DetectDeveloping capabilities to recognise and respond to threats.Monitor network traffic for unusual activity. Implement logging and review logs regularly. Use intrusion detection systems. Ensure you have visibility into potential threats before they escalate.
RespondEstablishing incident response and mitigation procedures.Develop a clear incident response plan. Practice your response plan with tabletop exercises. Establish communication protocols for incidents.
RecoverEnsuring business continuity and resilience following incidents.Implement regular data backups. Test backup restoration procedures. Develop a business continuity plan. Ensure critical systems can be restored quickly.

Free Resource: Download the Irish SME Cyber Survival Guide — 10 practical controls based on NCSC Ireland and ENISA guidance. No email required for the first section.


Self-Assessment: Your First Step to CyFUN Readiness

One of CyFUN's key benefits is its emphasis on self-assessment. This allows SMEs to determine their current cybersecurity maturity. The framework includes a selection tool. It considers factors like your organisation's size, sector, and risk exposure. Based on this, you are assigned one of three maturity levels: Basic, Important, or Essential. This self-assessment is crucial for understanding where your business stands and what steps you need to take.

Consider the Cork manufacturing firm. They lost a €2.3 million contract. Why? They failed a client cybersecurity audit. The client required Cyber Essentials certification. A CyFUN self-assessment could have identified these gaps. It would have provided a roadmap to meet the client's requirements. Don't let a missed opportunity cost your business dearly. Proactive assessment is vital.

The Real Cost of Ignoring Cyber Security

Ignoring cybersecurity is a gamble. The stakes are incredibly high. A Donegal accountancy firm learned this the hard way. They received a BEC email. It appeared to come from a client. They transferred €18,000. They realised too late. No cyber insurance meant no recovery. The financial hit was severe. The trust of their client was shattered.

In Letterkenny, a GP practice faced a €15,000 fine from the Data Protection Commission (DPC). The reason? Inadequate access controls. A former receptionist accessed patient records for six months post-employment. This highlights the critical importance of the 'Protect' function in CyFUN. Data breaches carry significant financial and reputational penalties, especially under GDPR.

These are not isolated incidents. They are warnings. They underscore the need for frameworks like CyFUN. They show why proactive cybersecurity is not an option. It is a necessity. It protects your assets. It safeguards your reputation. It ensures your business continuity.


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Ready to find out where your business stands? Book a free 20-minute strategy call with our vCISO team at pragmaticsecurity.ie/book-a-call. No sales pitch. No jargon. Just an honest assessment of your cybersecurity posture and a clear plan to address it.

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