Cookies

Cookies are locally stored text files, typically used to store web user data and website activity information, primarily to speed-up a user's website experience.

Cookies can be used to perform a variety of functions on a website. In most situations they are necessary to the functionality of the website, such as handling user logins, e-commerce tracking etc. However, they can also be used to display targeted advertising. It's this form of cookie use, that concerned the EU.