Moodle plugins directory: Multi-factor authentication: Stats | Moodle.org
Multi-factor authentication
Administration tool ::: tool_mfa
Maintained by Catalyst IT, Brendan Heywood, Peter Burnett, Mikhail Golenkov
This is a Moodle plugin which adds Multi-Factor authentication (MFA), also known as Two-factor authentication (2FA) on top of your existing chosen authentication plugins.
https://en.wikipedia.org/wiki/Multi-factor_authentication