In the European Union, Directive 2009/136/EC was intended to guarantee and strengthen the protection of personal data during website visits. The EU Cookie Directive, adopted in 2009, was supposed to be implemented by all member states by 2011 at the latest – which, however, did not happen.
The cookie policy essentially stipulates that website visitors must be informed about the use of cookies in an easily understandable way and must consent to their storage. According to the policy, cookies may only be set without prior consent if they are technically necessary – for example, to provide a service requested by the user. This includes session cookies for storing language settings, login data, and shopping cart contents, or Flash cookies for playing media content.
For most cookies, however, website operators need user consent. This applies to all cookies that are not technically necessary for the website to function. This includes, in particular, advertising cookies used for retargeting , but also analytics and social media cookies. The EU directive, however, does not specify exactly how these requirements are to be implemented. Uncertainty prevails, especially regarding the consent declarations of website visitors.