Twitter admits it used phone numbers provided by users for 2FA to target ads

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Twitter used phone numbers and email addresses of users to help advertisers
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Twitter used phone numbers and email addresses of users to help advertisers

Twitter took mobile phone numbers provided by users for two-factor authentication and used them for targeted advertising

Twitter has admitted using phone numbers provided for two-factor authentication (2FA), as well as user email addresses, for advertising purposes.  Although the 2FA phone number is supposed to be...

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