Despite the privacy gap, consumers should still use two-factor authentication whenever possible.
Facebook FB, +3.14% came under fire over the weekend after a user discovered that users of the social-media site cannot opt out of allowing others to “look up” others’ accounts using the phone number they supplied for two-factor authentication.
For years Facebook claimed the adding a phone number for 2FA was only for security. Now it can be searched and there's no way to disable that. pic.twitter.com/zpYhuwADMS Burge also argued that Facebook was turning people’s phone numbers into trackable pieces of data that they can use to keep tabs on you across all of their related companies. Facebook did not immediately respond to a request for comment from MarketWatch.
Some resurfaced revelations from last year, first reported by TechCrunch, that Facebook was using phone numbers supplied for two-factor authentication to hone its advertising targeting. And social media isn’t the only online arena where consumers should employ two-factor authentication. The website Two Factor Auth lets users search to see all sites that offer the feature.Despite the importance of two-factor authentication as part of securing one’s online accounts, fewer than half of American have even heard of the process, and even fewer use it, according to the results of a recent survey from security firm Duo Security.
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