We collect information about the advertisements on the Netflix service that you view or interact with, device information (such as resettable device identifiers), IP addresses, inferences we make about you or your household based on data we collect from or about you (such as the types of ads you or your household prefer to see), and information provided by Advertising Companies (such as your demographic information, likely interests they have collected or inferred from your interactions and purchases through their own and other websites and apps). We also collect information on Advertiser websites and apps. We use this information to support advertisements (including behavioral advertisements in accordance with your preferences. "Behavioral Advertisements" are those that are selected based on information about your use and/or interactions with unaffiliated third party services).
This means Netflix is profiling you using data collected well beyond its own platform, which many consumers would not expect from a subscription streaming service, and this data is shared with external companies.
Netflix collects a wide range of personal data including your full viewing history, voice inputs and transcripts, device identifiers across your home network, and behavioral advertising profiles built from your activity on third-party websites and apps outside of Netflix. Netflix shares this data with external Advertising Companies and service providers, and makes inferences about your household's preferences — meaning data collected about one person on your network may influence how others are profiled. You can opt out of behavioral advertising and the sale or sharing of your personal information by visiting your Netflix account settings or navigating to netflix.com/adchoices.