What are cookies
Cookies are small text files with information, which are stored by the server of a website on the terminal device (computer, mobile phone, etc.) of a visitor/user while navigating it. The website shall retrieve this information on each visit in order to provide relevant services. A typical example of such information is the user’s preferences on a website, as stated by the choices made on it (e.g. selecting certain buttons, searches, etc.).
According to article 4 par. 5 of Law 3471/2006 the storage of information or acquisition of access to stored information in the user terminal equipment is only permitted if the particular user has given his/her consent upon clear and extensive information. An exception to the obligation to obtain consent in accordance with that paragraph shall be the case of storage and access to information intended solely to ‘the transfer of a communication via an electronic communications network or which is necessary for the provision of an information society service expressly requested by the user or subscriber. Essentially, the user’s consent is not required for cookies that are technically necessary to make the connection to the website or to provide the Internet service.
Cookies can be installed by the provider of the website visited by the user (first party cookies) or by others through the provider of the website (third party cookies).
HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser. Cookies are placed on the device used to access a website, and more than one cookie may be placed on a user's device during a session.
Cookies serve useful and sometimes essential functions on the web. They enable web servers to store stateful information (such as items added in the shopping cart in an online store) on the user's device or to track the user's browsing activity (including clicking particular buttons, logging in or recording which pages were visited in the past). They can also be used to save for subsequent use information that the user previously entered into form fields, such as names, addresses, passwords, and payment card numbers.
Authentication cookies are commonly used by web servers to authenticate that a user is logged in, and with which account they are logged in. Without the cookie, users would need to authenticate themselves by logging in on each page containing sensitive information that they wish to access. The security of an authentication cookie generally depends on the security of the issuing website and the user's web browser, and on whether the cookie data is encrypted. Security vulnerabilities may allow a cookie's data to be read by an attacker, used to gain access to user data, or used to gain access (with the user's credentials) to the website to which the cookie belongs (see cross-site scripting and cross-site request forgery for examples).
Tracking cookies, and especially third-party tracking cookies, are commonly used as ways to compile long-term records of individuals' browsing histories. European law requires that all websites targeting European Union member states gain "informed consent" from users before storing non-essential cookies on their device.
You can also delete all cookies already on your device by deleting your browser’s history. This will delete all cookies from all websites you visited from this browser. Please note, however, that some stored data may also be lost (e.g. stored login details, website preferences).
To manage and disable cookies, you can follow the relevant instructions for each type of browser:
You can change your preferences at any time you wish by clicking here.
Last update: September 2022