Facebook is Using Your Phone Numbers to Target Ads

Facebook has now confirmed that advertisers had access to phone members given by the users of the website while entering it for the security of their profiles

A study by two US universities, first reported by news website Gizmodo, found that phone numbers given to Facebook for two-factor authentication were also used to target advertising.

Two-factor authentication is intended to enhance security by requiring a second step, such as entering codes sent via text messages, as well as passwords to get into accounts.

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