Technical cookies At first, according to the Office, it is important to distinguish whether personal data is processed via "technical cookies" or "non-technical cookies". If the website only uses technical cookies that are necessary for its own operation, there is no need to use a cookie bar, however, the website users have to be informed of this fact (including a recommended list of cookies used and their purpose). If there is related processing of personal data, such information must also comply with the requirements of the GDPR.