Information Security

What does information security mean according to ISO 27001?

Information security goes far beyond firewalls and passwords. It's about protecting everything of value to your organization: customer data, financial information, project documentation, you name it. As cyber-attacks and data breaches become more common, it's no longer an option to let this go unchecked. It is a continuous process: assess risks, make employees aware and take appropriate measures. If you want to be serious about information security, it starts with addressing those processes structurally.
This article was last updated on
4/11/2025

What does information security mean according to ISO 27001?

ISO 27001 is the international standard for information security. The standard helps organizations of all sizes systematically establish and maintain information security. Important to know: ISO 27001 does not tell you exactly what technical products to use. The standard lays down what you must arrange process-wise and organization-wise to identify, control and continuously improve risks. This is done through an ISMS (Information Security Management System). With a good ISMS you can demonstrate that you take information security seriously - that works both internally and towards customers and clients.

 

The three pillars of ISO 27001

ISO 27001 rests on three core principles: confidentiality, integrity and availability. Confidentiality means that only authorized people have access to information. Integrity means that information remains complete and accurate. Availability means that information is accessible when needed. By applying these principles in policies, processes and technical measures, you make information security structurally and practically feasible. An information security certification shows that these principles are not just on paper, but actually work in daily practice.

 

Why an ISO 27001 certification is valuable

An ISO27001 certification is more than a sticker on the website. For customers and partners, it is proof that your processes are in order and that you are actively working to reduce risks. In tenders and contracts, we increasingly see that information security certification is a hard requirement. Internally, a certificate provides clarity: who does what in case of incidents, where are the main risks and how do you measure improvement. In short: it strengthens trust and at the same time brings focus to your organization.

 

The role of the ISO 27001 audit

The ISO27001 audit is the touchstone of your ISMS. An independent auditor checks that you meet the requirements of the standard. That can sound exciting, but an audit mainly informs. You gain insight into what is going well and which parts need attention. An information security audit is not a trap; it is a practical instrument to further strengthen your security and make it demonstrable for customers or regulators.

 

Getting started with information security yourself

You don't have to do a complete organizational turnaround before you start. Start with policies, conduct a risk analysis and ensure basic awareness among your employees. Document who is responsible for what and build your ISMS step-by-step. If you want to move toward ISO27001 certification, professional information security advice is often very useful: it helps you avoid common pitfalls and prepare efficiently for audits.

 

Need help? Schedule a no-obligation consultation

Want to take concrete steps or prepare for an ISO27001 audit? Schedule a free, no-obligation 45-minute consultation. Together we will look at where you are now and what smart steps you can take next. Prefer to read first? Visit our news & insights page for white papers and practical checklists on risk analysis, policy and audit preparation.

Kilian Houthuijzen
Commercial manager & partner
085 773 6005
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