SMS MFA Extension for Keycloak

One-Time Passwords via SMS – Without Installing an App

Secure logins with one-time passwords via SMS. The user receives a code on their phone and enters it during login – no app, no device binding. For whom: SMS MFA is particularly suitable for B2C scenarios with a broad user base, as a fallback option, or when low entry barriers are more important than maximum security.
Keycloak Extension SMS-OTP 2FA / MFA B2C

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Login with SMS code

After entering username and password, Keycloak generates a temporary code and sends it via SMS. The user enters the code – access granted.

Prerequisite

SMS Provider Extension

Requires the SMS Provider Extension for gateway integration. Can be combined with MFA Selection (SMS as an option) and User Portal (phone numbers in self-service).

Frequently asked questions about the SMS MFA extension

Gateway, security, configuration

Which SMS gateways are supported?

Is SMS MFA secure enough?

What happens if the SMS doesn’t arrive?

Can SMS texts be customized?

How are SMS messages logged?

SMS MFA Extension for your project

Let’s check together whether SMS MFA fits your requirements.

Frank Tripp Head of Identity & Access Management c.frank.tripp@loginfactor.com 05251 5449490
Frank Tripp