Trials and demos
How to buy

Cisco Duo: security-first identity and access management

Cisco Duo is Cisco's identity and access management product. It verifies user identity and device trust before granting access to applications and networks, combining multi-factor authentication (MFA), single sign-on (SSO), directory, and adaptive access policies in one cloud-based service.

Within Cisco's broader security portfolio, Duo is the product that secures the workforce layer of access — confirming that the right users, on trusted devices, reach the right applications. For product documentation, trials, and administrator resources, visit duo.com.

    How Duo works

    How does Duo fit into Cisco's security portfolio?

    Cisco's security portfolio spans the network, cloud, endpoints, email, and identity. Duo is the identity and access management piece—it secures how users and their devices gain access to applications, whether those applications are on-premises or in the cloud. It works alongside other Cisco security products rather than replacing them, providing the access-verification layer of a Zero Trust approach.

    Duo builds on the core identity concepts of multi-factor authentication (MFA), single sign-on (SSO), and identity and access management (IAM)—each explained in more depth on its own page.

    How does Duo work?

    • Duo authenticates users and verifies devices to establish trust
    • Duo enables access and applies powerful and granular adaptive policies to enforce trust-based access
    • Duo provides risk-based authentication to continuously verify trust
    • Duo provides alerts, logs, and anomalous login detection to allow organizations to detect and respond to changes in trust

    Looking for the Duo product? For product documentation, trial access, administrator resources, and technical configuration, visit duo.com.

    How Duo relates to core identity concepts

    Duo brings together several identity and access management concepts. Each is a topic in its own right:

    Common questions about Cisco Duo

    Cisco Duo is Cisco's identity and access management product. It verifies user identity and device trust before granting access to applications, combining multi-factor authentication, single sign-on, and adaptive access policies in one cloud-based service.

    Duo confirms that the right users, on trusted devices, can reach the applications they are authorized to use. It does this through multi-factor authentication, single sign-on, device trust checks, and policies that adapt to the risk of each login.

    Duo is the identity and access management layer of Cisco's broader security portfolio, which also spans network, cloud, endpoint, and email security. It secures workforce access as part of a Zero Trust approach and works alongside Cisco's other security products.

    Duo product documentation, administrator guides, trials, and technical configuration live on duo.com/docs. This page provides the category-level overview; duo.com is the source for everything product-related.

    Duo combines multi-factor authentication with single sign-on, device trust, and adaptive access policies in one cloud-based Identity and Access Management solution, rather than offering MFA alone. For a detailed feature comparison and product specifics, visit duo.com/editions-and-pricing.

    Resources

    Related security technology

    What is multi-factor authentication (MFA)? What is single sign-on (SSO)? What is identity access management (IAM)? Visit duo.com for product details