This is stipulated in the Personal Data Protection Act [Wet bescherming persoonsgegevens] and is usually set out in a privacy statement. Visitors should be able to find your privacy statement easily. You could, for instance, include a hyperlink to your privacy statement at the bottom of each page if you collect statistical data about visitors, and refer to your privacy statement in the ordering process.
A privacy statement should in any case contain the following:
Before you start a new project, you should consider all possible privacy-aspects of your software. We can make sure your software includes ‘Privacy by Design’.
Your clients or users themselves are liable for the information they publish on line. However, if the nature of the information is “manifestly’ unlawful, you yourself may be held liable by the complainant.
Avenue Louise 65, 1000, Brussels, +32 (0)2 535 77 55, email@example.com