"Twitter Admits It Used Two-Factor Phone Numbers and Emails for Serving Targeted Ads"
Another incident has raised concerns over the misuse of customer data by social media giants. Twitter recently admitted to using phone numbers and email addresses provided by users to enable two-factor authentication on their accounts for targeted advertising. According to a statement released by the company, this issue derived from its advertising system that allows companies to upload their own marketing list, match with Twitter users, and directly target them in their campaigns. This article continues to discuss the incident, the importance of two-factor authentication, a similar incident that was faced by Facebook last year, and other notable security mistakes made by Twitter.
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