--- title: "MFA Providers" slug: "mfa-providers-v6-5" updated: 2025-10-31T18:21:18Z published: 2025-10-31T18:21:16Z canonical: "support.appgate.com/mfa-providers-v6-5" --- > ## Documentation Index > Fetch the complete documentation index at: https://support.appgate.com/llms.txt > Use this file to discover all available pages before exploring further. # MFA Providers Multi-factor authentication can be used for controlling user access to network resources, administrator access to the Admin UI, and at sign-in. Appgate SDP provides: a built-in Time-Based OTP Provider (that works with most authenticator apps), a built in FIDO2 provider and supports the use of external RADIUS MFA providers. Once MFA Providers have been configured, you can use them for creating user interactions in Conditions, MFA for Admins, or configuring the on-boarding mode for each Identity Provider. ## Before you start Information you will need: - RADIUS server hostname/IP address, port, authentication protocol, shared secret, shared secret challenge Background reading: - On-boarding (at authentication time), refer to [Multi-stage authorization - device trust](/v1/docs/multi-stage-authorization#2-device-registration-trusted-device) - Elevating levels of trust with user interactions, refer to [Multi-stage authorization - elevating trust](/v1/docs/multi-stage-authorization#5-conditions-claims-user-interactions-elevating-trust-level) - Mandating multi-factor authentication for administrator access, refer to [MFA for Admins](/v1/docs/mfa-for-admins) - Understanding user interactions in more depth refer to [user interactions](/v1/docs/applying-access-controls-user-interactions) - Using Appgate SDP with different RADIUS options refer to: [RADIUS Providers](/v1/docs/claim-harvesting-multi-factor-authentication#radius-providers) Use the MFA Providers form to: - [Edit the default time-based OTP provider](/v1/docs/configure-mfa-provider) - [Edit the default FIDO2 provider](/v1/docs/configure-mfa-provider) - [Configure a new MFA provider](/v1/docs/configure-mfa-provider) and test connections to the provider > [!NOTE] > **NOTE**: > > Built-in providers cannot be deleted Appgate SDP (Software Defined Perimeter) is a security solution that provides secure access to resources based on user identity and context, leveraging a zero trust security model.