Cookies and trackers allow Pinterest and its partners to monitor your online behavior extensively, including on websites that have nothing to do with Pinterest, building a detailed profile about you.
Pinterest collects a broad range of personal data including browsing behavior, device information, location, and inferred interests, which is used to serve targeted advertising and train AI/ML models. Your data may be shared with a wide range of third parties including advertisers and analytics partners, which could have meaningful implications for your privacy. You can visit Pinterest's privacy settings at https://www.pinterest.com/settings/privacy to manage ad personalization, data sharing preferences, and to submit data access or deletion requests.