n our online services: 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), the "Data Security Conditions" (https://www.facebook.com/legal/terms/data_security_terms) and, with regard to processing in the USA, on the basis of Standard Contractual Clauses ("Facebook EU Data Transfer Addendum, https://www.facebook.com/legal/EU_data_transfer_addendum). The rights of users (in particular to access to information, erasure, objection and complaint to the competent supervisory authority) are not restricted by the agreements with Facebook. Processed data types: Inventory data (e.g. names, addresses), Contact data (e.g. e-mail, telephone numbers), Event Data (Facebook) ("Event Data" is data that can be transmitted from us to Facebook, e.g. via Facebook pixels (via apps or other means) and relates to persons or their actions; the data includes, for example, information about visits to websites, interactions with content, functions, installations of apps, purchases of products, etc.; Event data is processed for the purpose of creating target groups for content and advertising information (Custom Audiences); Event Data does not include the actual content (such as written comments), login information, and Contact Information (such as names, email addresses, and phone numbers). Event Data is deleted by Facebook after a maximum of two years, the Custom Audiences created from them with the deletion of our Facebook account). Data subjects: Users (e.g. website visitors, users of online services). Purposes of Processing: Provision of contractual services and customer support, 