In another move to replicate its desktop experience on mobile, Facebook today announced a few key security features for its mobile website and mobile apps, like code generator, password recovery ...

Most sites offer 2FA by sending a one-time code via text message or email in ... In most cases, you will need to dig deeper within the site's security or privacy settings to enable the use of ...

Therefore, even though the code generator exists no more, you have alternative ways to log in. As you turn on the two-factor authentication (2FA), Facebook requests a security code similar to an OTP.

2FA offers hardened security during login attempts by requesting ... and the website's login credentials are saved in Safari for the 2FA code generator to work properly. Open Safari and navigate ...

2FA offers hardened security during login attempts by requesting that the user provides an extra piece of information only they would know, such as a randomly generated code from a third-party.