“Cookies” are small files that include information that a website (in particular, the web server) saves at the computer/tablet/mobile phone of a user, in order to enable retrieval of this information each time the user visits the website, thus offering to the user services relevant to it. An illustrative example of such information is the preferences of the user when visiting a website, which are identified by the way that the user uses the website (for example, by electing specific “buttons”, searches, advertisements etc.).