Integrating Duo MFA with Office 365: A Guide

When it comes to integrating Duo Multi-Factor Authentication (MFA) with Office 365, there are several ways to achieve this goal. One approach is to have Zoom Single Sign-On (SSO) point to Duo SSO. This method allows users to log in to Zoom using their Azure Active Directory (AAD) credentials and then require MFA authentication via Duo.

However, it's important to note that Zoom does not natively support Duo MFA. Instead, you need to set up Zoom SSO with an Identity Provider (IdP) and then have that IdP integrate with Duo. This allows you to leverage your existing identity sources as the gold master, with Duo providing read-only copies of those sources.

Another option is to use Azure AD Conditional Access (with AAD P1 plans) configured for the Zoom app. This method requires users to authenticate using MFA provided by Azure AD, which then integrates with Duo to provide an additional layer of security.

It's worth noting that Duo SSO exists solely to enable organizations to bring Duo MFA to products that do not have native Duo integration. This is a different approach than traditional IdPs like Okta or AAD, which aim to be full-fledged identity providers.

In summary, integrating Duo MFA with Office 365 requires careful planning and configuration. By understanding the options available and choosing the right approach for your organization, you can ensure that your users are protected by strong authentication and access controls.

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