Clear priorities and practical next steps for your cyber security

Cyber threats increasingly affect the core of your organisation. A single weak spot in an application, cloud environment, network or laptop can be enough to cause data loss, operational disruptions or reputational damage. Especially for SMEs and mid-sized organisations, it can be challenging to maintain a continuous overview of all digital risks. You want to know where you stand. Not through a report full of technical jargon, but through clear priorities and practical next steps.

With cyber security testing, we identify vulnerabilities and map out potential risks. We translate technical findings into concrete organisational risks. This helps you understand what requires immediate attention, what is less urgent and how you can strengthen your cyber resilience in a targeted and effective way.

How do we help you?

We assess your digital environment through targeted security testing and penetration testing. This includes web applications, mobile applications, APIs, infrastructure, cloud configurations, cloud environments, operational technology and hardware such as business laptops. Our specialists identify vulnerabilities in the same way an attacker would, while always working in a controlled and carefully managed manner.

Afterwards, you receive a clear report outlining the risks, potential impact and recommended improvement actions. We explain our findings so that IT teams, management and the board can work from the same understanding. If vulnerabilities occur repeatedly, we also help you establish or improve your secure development lifecycle. This ensures that security is not added afterwards but becomes an integral part of the development process from the very beginning.

What do we offer?

  • Penetration testing for web applications, mobile applications and APIs.
  • Insight into vulnerabilities within your internal and external infrastructure.
  • Security testing of cloud configurations and cloud environments.
  • Research into vulnerabilities within operational technology.
  • Assessment of hardware, such as business laptops and workstations.
  • Phishing campaigns, mystery guest exercises and other awareness tests.
  • Advice and support in establishing or improving your secure development lifecycle.
  • A solution-oriented report with risks, priorities and next steps.
  • A detailed explanation from our experts, so you immediately understand which actions are required.

What does it deliver?

Cyber security testing gives you greater control over your digital risks. You gain insight into where your organisation is vulnerable and which risks require the most attention. This enables IT teams to implement targeted improvements and provides executives with the information needed to make well-informed decisions.

As a result, information security does not remain a stand-alone technical activity. Instead, cyber resilience becomes directly linked to business continuity, compliance and trust. We help you not only identify vulnerabilities but also understand and address them. This allows you to work step by step towards a safer, stronger and more resilient digital environment.

Benefits for your organisation

  • You identify weak spots before attackers can exploit them.
  • You gain insight into the impact of cyber risks on your business operations.
  • You can prioritise investments in cyber security more effectively.
  • You strengthen the security of applications, infrastructure, cloud environments and hardware.
  • You increase employee awareness through realistic testing scenarios.
  • You support compliance with NIS2, DORA, GDPR, ISO 27001 and the Cyber Resilience Act (CRA).
  • You provide stronger protection for business data against unauthorised access.
  • You make security an integral part of development, management and decision-making.

Stronger together against cyber risks

Do you want to know where your organisation is vulnerable, and which actions should take priority right now? Contact our cyber security specialists. Together, we will map out your digital risks and strengthen your resilience.

Why choose for Grant Thornton?

Grant Thornton Netherlands is a member of Grant Thornton International Ltd (GTIL), one of the world's largest networks (#7) of independent accounting and advisory firms, with 76,000 professionals in 156 markets. From eight Dutch offices, more than 700 professionals support our clients with advice and guidance in the fields of accountancy, tax, and (financial) advisory. We deliver world-class expertise in a way that seamlessly aligns with each client's unique situation. We operate from a solid foundation with a flexible and results-driven mindset.

Duurzaamheid in het mkb

Frequently asked questions and answers

The difference between cyber security testing and a regular vulnerability scan is that a vulnerability scan provides a technical overview of potential weak spots. This is valuable, but it is usually not sufficient. Cyber security testing goes a step further.

We assess the context of your organisation, the way systems operate and the potential impact of an attack. Our specialists determine which vulnerabilities genuinely pose a risk and which measures are likely to be most effective. As a result, instead of receiving a stand-alone list of findings, you receive a practical and actionable view of your cyber resilience. You know where to start and which actions will deliver the greatest value.

Cyber security testing is valuable for both IT teams and executives. IT teams require technical depth to resolve vulnerabilities effectively. Executives, in contrast, need insight into risks, impact and priorities. Our approach brings these perspectives together. We make technical findings understandable and connect them to business continuity, compliance, trust in data and reputation.

This creates a shared understanding of the risks and the actions required. It also supports better decision-making, clear responsibilities and targeted investments. As a result, cyber resilience does not become a stand-alone IT project but an important part of the overall business strategy.

After the test, you receive a solution-oriented report containing findings, risks and recommended next steps. Our experts explain the results and provide context for the most significant vulnerabilities. You can clearly see which actions are immediately necessary and which improvements can be addressed over the longer term. When certain vulnerabilities occur more frequently, we work together to investigate the underlying causes.

This may lead to improvements in development processes, cloud management, awareness programmes or governance. In this way, the process does not end with testing alone. Instead, you take targeted steps towards achieving lasting cyber resilience.

Related articles

More articles
Cyber risk services

Cybersecurity Act: do you know where your biggest cyber risks lie?

Cybersecurity has long since ceased to be an exclusively IT-related topic. Cyber incidents can lead to operational downtime, financial losses, reputational damage and disruption across the entire value chain. That is why the NIS2 Directive places responsibility firmly on directors and management.

Arno Kroese
| 3 min read | 07 Aug 2026
Cyber Risk Services

NIS2 (Cbw) is often underestimated. This can turn out to be costly for organisations.

For many organisations, the likelihood of this happening seems low. Yet daily news reports show that ransomware attacks, data theft, and disruptions of critical IT systems are no longer rare exceptions. Financial damage can run into millions of euros, while reputational harm and loss of customer trust often have even greater consequences.

Arno Kroese
| 7 min read | 31 Jul 2026
International Business Report

Thriving through disruption: A differentiator for growth

In the next edition of Grant Thornton’s series on trending international insights, we examine how disruption can offer the mid-market an opportunity to grow and differentiate themselves from their competitors.

29 Oct 2025
    More articles