# Multi-factor User Authentication
# Time-based One-time Passwords
Uses can configure multi-factor authentication using Time-based One-Time Passwords (TOTP). When multi-factor authentication is enabled, users can use Google Authenticator or other authenticator applications to generate a one-time password to log in to the workspace portal or when connecting over SFTP.
# Enabling Multi-factor Authentication
To allow users to configure multi-factor authentication in the workspace portal, you must add the
otp_issuer setting in the application configuration file. This setting should be a human readable string which identifies your FileMage deployment to your end users, such as
Company Name - File Server. This identifier string will appear in the users authenticator application.
FTP connections do not support MFA currently. Users will have to use SFTP or the workspace portal.