Cookies are small text files that are placed on your computer by websites that you visit. These text files can be read by these websites and help to identify you when you return to a website. Cookies can be “persistent” or “session” cookies. Persistent cookies remain on your computer when you have gone offline, while session cookies are deleted as soon as you close your web browser.
How to disable cookies in different browsers?
If you are using a portable device (telephone, smartphone, tablet) please familiarize yourself with the options concerning the presonal data protection in the documentation on the website of your device producer.