Quantarra Get the free guide →
Free guide · CyFun & NIS2

Know what CyFun asks of you before your verification.

The CyFun Readiness Guide explains the Basic, Important and Essential levels, the evidence each one expects, and how CyFun fits with NIS2. Plain language, ready to share with your team.

Cover of The CyFun Readiness Guide
Free PDF · 11 pages

Get the free guide

We'll email it to you straight away.

  • The three CyFun levels in plain language, and how to choose yours.
  • What evidence an assessor expects, and who should own it.
  • How CyFun relates to NIS2 and ISO 27001, so you build once and reuse.
  • A one-page evidence template and a first-steps checklist.

Quantarra helps teams in healthcare, telecom, SaaS and logistics stay audit-ready across frameworks, including CyFun.

Why now

The NIS2 deadline has passed. Can you show the proof?

CyFun, developed by the Centre for Cybersecurity Belgium (CCB), is a practical, recognised way to show you manage cyber risk. Assessors want evidence, not policies.

Since 18 Oct 2024

NIS2 is law in Belgium

The Belgian NIS2 Act covers many medium and large organisations in the sectors it lists. If you are in scope, you must register with the CCB.

Since 18 Apr 2026

Essential entities must show a route

For example, a CyFun verification at least at Basic or Important level, or a signed agreement with an accredited assessment body.

Now

Missing proof has a cost

The CCB says late or incomplete submissions may result in administrative measures or financial penalties.

Not an essential entity? Important entities still need to show appropriate measures, and customers in scope may ask their suppliers for proof. CyFun gives you a clear, checkable answer. Source: Centre for Cybersecurity Belgium. Scope and routes are summarised; confirm what applies to you with the CCB.

Get ready for your assessor with a clear plan, starting today.

Get the free guide
What's inside

Eight short chapters. One clear path to verification.

Read it in order the first time. After that, keep the evidence template and the checklist open while you work.

01

Why CyFun, why now

Who the Belgian NIS2 law covers, and the dates that matter.

02

The framework on one page

The assurance levels, and which version to work to.

03

Choosing your level

Three questions that decide how much evidence you need.

Start here
04

Proving it

The routes the CCB names, and who assesses CyFun.

05

Evidence that holds up

Control, owner, evidence, review date: a one-page template.

Template
06

Common gaps

The habits that slow assessments down, and the fix for each.

07

First-steps checklist

Prepare, build, prove, keep: one page to tick through.

Checklist
08

How Quantarra helps

Controls, owners and evidence in one place.

A preview from chapter 2

Basic, Important, Essential. Each one goes further.

Your level decides how much evidence you need to gather. The guide helps you choose deliberately and early.

Level 1

Basic

Standard security measures suited to all companies, mostly using technology and processes that are already widely available.

Level 2

Important

Reduces the risk of targeted attacks by actors with common skills and resources, in addition to known risks.

Level 3

Essential

Adds protection against advanced attacks by actors with extensive skills and resources.

Not sure which level is yours? Chapter 3 walks you through it in three questions.

Get the free guide
Who it's for

Written for the people who'll face the assessor.

No prior knowledge of CyFun needed. Hand it to your team as a shared starting point.

How Quantarra helps

Compliance isn't a checklist. It's a strategic asset.

Quantarra is an AI-driven audit and compliance platform, with expert oversight, that turns CyFun from a yearly scramble into continuous assurance. CyFun is one of the frameworks it supports.

Controls with owners

Every requirement broken down to the control level, with an owner, a status and a due date.

Evidence, collected for you

300+ connectors gather evidence automatically and keep it linked to the control it proves.

Review before the assessor

An internal review step and a live dashboard for every audit, with a maturity view for CyFun.

Map once, reuse everywhere

Reuse the same controls and evidence across CyFun, ISO 27001, SOC 2 and GDPR.

One source of truth

Assessors work from the same immutable audit ledger as your team, which can cut external audit fieldwork from months to days.

A partner through every audit

We guide you on what evidence to collect, who owns it, and how to work with your assessor, from first gap check to verification.

Runs on AWS · 24x7 support · 99.99% availability

Still in spreadsheets?

Spreadsheets work for a while. Then they become the risk.

Tracking CyFun by hand is fine for one assessment. As controls, owners and frameworks grow, it means missed owners, stale evidence and no review trail. Quantarra automates the busywork, so your team spends assessment week reviewing, not scrambling.

The platform itself is remarkably intuitive and robust, truly transforming how we manage our internal audits and maintain continuous compliance.
Satbeer Bhatia, Head of Compliance, NucleusTeq

Start with the guide. When you're ready, we'll show you CyFun in Quantarra.

Get the free guide
Questions

Before you download

Is the guide really free?

Yes. Enter your details and we email you the PDF straight away. You'll get two short follow-up emails, and you can unsubscribe at any time.

Do I need to be in Belgium for this to matter?

CyFun was developed by the Centre for Cybersecurity Belgium for organisations under the Belgian NIS2 law. Any organisation can use it to assess its own cybersecurity, and suppliers to Belgian NIS2 entities may be asked about it.

Which version of CyFun does it cover?

CyFun 2023 and CyFun 2025 can both be used until 18 April 2027. The guide explains how to choose a version with your assessor and stay on it for the whole cycle.

Is this legal advice?

No. It is general information to help you prepare. The CyberFundamentals framework, the Belgian NIS2 Act and the CCB's guidance are the authority, so confirm what applies to you with the CCB, your assessor or legal counsel.

Does Quantarra support CyFun?

Yes. CyFun is one of the frameworks Quantarra supports, and you can map controls once and reuse the same evidence across ISO 27001, SOC 2, GDPR and more.

Get the CyFun Readiness Guide

Free, eleven pages, and ready to share with your team. When you want help putting it into practice, we're one call away.