It was reported in 2019 that the scheme used Twitter’s Tailored Audiences and Partner Audiences advertising systems, which allow advertisers to target ads to customers based on.
What just happened? The Federal Trade Commission (FTC) has fined Twitter $150 million over «deceptive» ad practices that used email addresses and phone numbers submitted for account security purposes, such as two-factor authentication, for targeted ads. Twitter maintains that what happened was an error. It was reported in 2019 that the scheme used Twitter’s Tailored Audiences and Partner Audiences advertising systems, which allow advertisers to target ads to customers based on either their own custom contact lists or those provided by a third party. Twitter admitted that users’ emails and phone numbers were «inadvertently» used for ad targeting in its system.
