Facebook security feature may reveal users’ phone numbers to others, says report

San Francisco: Facebook is facing backlash over its secure login process two-factor authentication (2FA) where it asked users to add phone numbers, which can be searched by advertisers.
The security feature — meant solely to authenticate your identity on the social media platform – may have left your phone number open for others to see, even to advertisers to bombard you with their ads, USA Today reported on Monday.
The debate was initiated by Jeremy Burge, who runs the website Emojipedia, saying numbers added to use two-factor authentication were now searchable.
“Facebook 2FA numbers are also shared with Instagram which prompts you ‘is this your phone number?’ once you add to FB. WhatsApp also shares phone numbers with Facebook. Facebook shares phone numbers with advertisers,” said Burge in a series of tweets.