Cookies are small files stored on the users' computers by the service provider's web servers. In practice the cookie is a small unnamed user-specific text file, which is stored on the user's web browser. The server can later read the cookie and thus the server can later be recognized (e.g. upon the user's return to the site). The cookie can later be used solely by the server which has stored the cookie, the users can not be recognized, and no damage can be done on the user's device. The cookies are per se divided into session-specific and permanent cookies. Session-specific cookies expire when the user finishes using the web-service, permanent cookies are stored in the browser for a specific amount of time or until the user deletes them. The cookies help the website's use and enable certain functionalities, such as remembering sessions, the website's user-based personalization, and simple recognition to the service. We use cookies to enable our service's functionalities. With cookies we can also collect information on the website's visitors' terminal devices and web browser. The collected information can be used to find solutions to problem situations. The cookie contains only an individual, session-based identifier, which enables the recognition of the web browser visiting the website. By using our website, you are consenting to the above mentioned use of data processing. You may also block the usage of cookies, but it may have severe drawbacks as cookies are the technical solution in the execution of the browsers' and www-servers' communication protocols and the grant system does not work properly without cookies. More information on browser-specific instructions may be found in the browsers' own instructions. Many browsers have the option to block cookies from third parties. In this case the browser only accepts cookies coming directly from the web service in use. The function is performed under the browser's settings (block all third party cookies) or with the help of Your Online Choices -website (the option to define what to block per company).