This data also helps us to optimise our website and services and ensure the security of our IT systems. Data stored in this way is not evaluated for marketing purposes. These purposes also constitute legitimate interest for processing data within the meaning of article 6, section 1, item f) of the GDPR.</p> <p>4. Duration of storage</p> <p>Data is deleted as soon as the purposes it has been collected for have been fulfilled. If the collection of data is necessary for the provision of the website and services, data is deleted as soon as the respective session is complete.