When it comes to digital security, one of the best ways to protect yourself is to use two-factor authentication. Most apps these days support it, including Facebook, a site where the more privacy you can muster, the better. However, of the two 2FA options available for Facebook, only one should be used as the other will share your phone number with the world, a huge privacy concern.

The two options you get for Facebook use either SMS texts or an authentication app, the former being the culprit you’ll want to avoid. For one, SMS-based 2FA is about the least secure form of 2FA available. On top… more

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