GDPR & Cybersecurity
26 March 2026

by Gorik Van den Bergh and Güney Yalcin

ISO 27001: the standard for strong information security

Information is one of your company's most important assets today. Customer data, financial figures and internal processes are indispensable for daily operations. At the same time, cyber threats and data breaches are increasing, customers and partners expect more and more, and legislation is being tightened on a frequent basis. ISO 27001 provides organizations with a structured and internationally recognized framework to meet these challenges.

What is ISO 27001?

ISO 27001 is the international standard for information security. The standard describes how to set up, implement and maintain an Information Security Management System (ISMS).

The focus is on identifying and managing risks that can threaten the confidentiality, integrity and availability of information. This not only considers IT, but also people, processes and policies. This makes ISO 27001 applicable to organizations of any size and in any industry.

Why are more and more organizations choosing ISO 27001?

ISO 27001 goes beyond mere compliance. It helps organizations implement information security structurally and demonstrably embed it into their operations.

1. Strengthen trust and credibility

An ISO 27001 certificate shows customers, partners and other stakeholders that information security is taken seriously. This strengthens trust and can be a decisive advantage in collaborations or tenders.

2. Greater insight and control

By systematically identifying risks, organizations get a better grip on their processes and data. This leads to more informed decisions and fewer surprises. It also ensures that responsibilities are clearly defined and monitored at the management level.

3. More efficient internal operations

Clear roles, responsibilities and procedures provide structure and reduce the likelihood of incidents and inefficiencies. Management of suppliers and external parties can also be handled in a structured, transparent manner within an ISO 27001 framework.

4. Regulatory support (GDPR & NIS2).

ISO 27001 aligns closely with legislation such as GDPR and helps organizations demonstrate that information security is being addressed in a thoughtful manner. In addition, the standard provides an important foundation under new European regulations such as the NIS2 Directive, which sets stricter requirements in terms of risk management, incident reporting and governance. Organizations that have established an ISO 27001-compliant ISMS often already have many of the fundamentals in place to meet these obligations.

5. Continuous improvement

Information security is not a one-time exercise. ISO 27001 encourages organizations to regularly evaluate and adjust their approach. This keeps the system in tune with evolving risks, technological developments and changing legal requirements.

ISO 27001 in relation to NIS2 and ISAE 3402

The focus on information security today is driven not only by best practices, but also by regulations and increasing demand for assurance.

The NIS2 directive requires a broad group of organizations to implement appropriate cybersecurity measures, while also placing clear responsibility on management. Directors are expected to actively monitor the security of information systems and can be held liable in certain cases. A structured management system such as ISO 27001 helps organizations demonstrably fulfill this responsibility.

In addition, customers are increasingly demanding formal assurance about the reliability of their service providers. In that context, ISAE 3402 plays an important role. Whereas ISO 27001 focuses on establishing and maintaining a management system for information security, an ISAE 3402 report provides assurance on the effective operation of internal controls. Both frameworks are not mutually exclusive, but reinforce each other and together contribute to trust and transparency.

In conclusion

ISO 27001 is not a purely technical exercise, but a strategic choice. It contributes to trust, continuity and professional operation. In a context of stricter regulations and higher expectations from customers and partners, ISO 27001 provides a solid foundation for sustainable information security.

What can Vandelanotte do for your company?

Vandelanotte supports organizations in strengthening their information security and risk management. Through an IT Audit or cybersecurity analysis, you gain insight into vulnerabilities in your system, risks in your processes, and priorities for improvement.

For example, we help with:

  • setting up and implementing an ISO 27001-ISMS

  • preparation for certification

  • Align with GDPR and NIS2

  • strengthen your internal control environment

Discover more about GDPR & Cybersecurity here

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Gorik Van den Bergh

Team Lead IT audit gorik.vandenbergh@vdl.be

Güney Yalcin

IT Risk Advisor guney.yalcin@vdl.be

Disclaimer
In our opinions, we rely on current legislation, interpretations and legal doctrine. This does not prevent the administration from disputing them or from changing existing interpretations.


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