Facebook Shows Why SMS Isn't Ideal for Two-Factor Authentication

Facebook is sending its two-factor authentication users text messages they don’t want. This situation provides yet another reason why you should use a dedicated app for generating two-factor authentication codes instead of SMS.

Case Study #2: Offering Two-Factor Authentication

How to Use iOS 15's Built-in Authenticator as a Secure 2FA Method for All Your Accounts « iOS & iPhone :: Gadget Hacks

How To Enable Two-Factor Authentication In Facebook Messenger

How to Turn on Two-Factor Authentication on Facebook

About the time hackers activated two-factor authentication on my Facebook account … – MissElaineous

What Is SMS Authentication and Should You Implement It? - Authgear

Facebook's new two-factor authentication process no longer requires a phone number - The Verge

Facebook Code Generator – How To Use

Not Receiving SMS Text Message 2FA Codes? Call Your Carrier - TidBITS

Fix: Facebook SMS for two-factor authentication on Log in

Two-factor authentication for beginners

How to Set up Two-Factor Authentication on Facebook