Twitter has no warnings published on PrivacySpy. PrivacySpy publishes warnings when it learns a service has announced a data breach or is found misusing user data. If you believe a warning should be published for Twitter, submit one here.
"Twitter adheres to the Digital Advertising Alliance Self-Regulatory Principles for Online Behavioral Advertising (also referred to as “interest-based advertising”) and respects the DAA’s consumer choice tool for you to opt out of interest-based advertising at https://optout.aboutads.info. In addition, our ads policies prohibit advertisers from targeting ads based on categories that we consider sensitive or are prohibited by law, such as race, religion, politics, sex life, or health. Learn more about your privacy options for interest-based ads here and about how ads work on our services here."