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Facebook admits, it shared your phone numbers for ads

SAN FRANCISCO: Facebook has confirmed that advertisers were privy to phone numbers given by members of the social network for enhanced security. 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. Phone numbers…