Two-factor authentication mode

Disabled, Optional, or Mandatory TOTP (Google Authenticator). No SMS. Default Optional.

Settingtwo_factor

Two-factor authentication mode

Site-wide TOTP policy (Google Authenticator or any compatible authenticator app). SMS and phone verification are not supported.

Where to find it

Admin → Settings → Mods → Security → Two-factor authentication mode

Setting key: two_factor

Default: optional

Options

Value Meaning
disabled No 2FA on the platform
optional Members may enable TOTP in Manage Account
mandatory Members without TOTP must set it up at sign-in before a session is created

Common problems

Locked out after Mandatory

An admin must reset 2FA for that user (or recover via your support process). Roll out Optional first, announce, then Mandatory.

Members never prompted

Mode is Disabled, or they already completed setup.

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