Twitter “Unintentionally” Used Your Phone Number for Targeted Advertising

Twitter “Unintentionally” Used Your Phone Number for Targeted Advertising By Gennie Gebhart and Jacob Hoffman-Andrews Stop us if you’ve heard this before: you give a tech company your personal information in order to use two-factor authentication, and later find out that they were using that security information for targeted advertising. That’s exactly what Twitter fessed up to yesterday in an understated blog post: the company has been taking email addresses and phone numbers that users provided for “safety and security purposes” like two-factor authentication, and using them for its ad…

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