SAN FRANCISCO (Reuters) - Facebook Inc will no longer feed user phone numbers provided to it for two-factor authentication into its “people you may know” feature, as part of a wide-ranging overhaul of its privacy practices, the company told Reuters.

Revelations last year that Facebook was using personal data obtained for two-factor authentication to serve advertisements enraged privacy advocates, who called the practice deceptive and said it eroded trust in an essential digital security tool.

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