es: a) displaying content advertising information that matches users' presumed interests; b) delivering commercial and transactional messages (e.g. b) delivering commercial and transactional messages (e.g., addressing users via Facebook Messenger); c) improving ad delivery and personalizing features and content (e.g., improving recognition of which content or advertising information is believed to be of interest to users). We have entered into a special agreement with Facebook ("Controller Addendum", https://www.facebook.com/legal/controller_addendum), which specifically addresses the security measures that Facebook must take (https://www.facebook.com/legal/terms/data_security_terms) and in which Facebook has agreed to comply with the rights of data subjects (i.e., users can, for example, submit information access or deletion requests directly to Facebook). Note: If Facebook provides us with measurements, analyses and reports (which are aggregated, i.e. do not contain information on individual users and are anonymous to us), then this processing is not carried out within the scope of joint responsibility, but on the basis of a DPA ("Data Processing Terms", https://www.facebook.com/legal/terms/dataprocessing