What is a cookie?
A cookie is a small data file stored in your computer, tablet or smartphone. A cookie is not a program that can contain harmful malware or virus.
You can see the specific services that store cookies and why they do it, under the different categories:
How long are cookies stored?
How to block or delete cookies
You may at any time block all or just third-party cookies completely by changing the browser settings on your computer, tablet or smartphone. The location of these settings will depend on the browser you use. However, you should be aware that if you block all or just third-party cookies, there may be functions and services that you will be unable to use on the website (because these depend on cookies).
It is easy to delete cookies that you have previously accepted. It depends on which browser (Chrome, Firefox, Safari, etc.) and device (smartphone, tablet, PC, Mac) you are using.
You can typically find this information under settings – Security and Privacy – but this may vary from one browser to another. Specify which device/browser you are using (click the appropriate link):