Custom settings for authenticator app 2FA

When setting up authenticator app 2FA, we allow you to customize some of the settings. However, some of these settings are not compatible with common authenticator apps.

The default settings maximize security with compatibility. It is best not to change the default settings unless you have a specific need to do so. 

  Google
Authenticator
Authy LastPass
Authenticator
Type      
   TOTP (default) ✓ Supported ✓ Supported ✓ Supported
   HOTP ✓ Supported ✘ Not supported ✘ Not supported
Algorithm      
    SHA1 (default) ✓ Supported ✓ Supported ✓ Supported
    SHA256 ✘ Not supported ✘ Not supported ✘ Not supported
    SHA512 ✘ Not supported ✘ Not supported ✘ Not supported
Length      
    6 (default) ✓ Supported ✓ Supported ✓ Supported
    8 ✘ Not supported ✓ Supported ✓ Supported