Duo, part of Cisco, provides multi-factor authentication and secure access that verifies user identity and device trust before granting access to applications.
Duo is a cloud-based identity and access management service best known for multi-factor authentication (MFA). Founded in 2010 in Ann Arbor, Michigan by Dug Song and Jon Oberheide, Duo joined Cisco in 2018 and operates as part of Cisco Security.
Duo verifies user identity and checks device trust before granting access to applications, applying adaptive access policies to reduce the risk of phishing and stolen credentials. Its capabilities include MFA, single sign-on, passwordless authentication, the Duo Passport experience, Duo Directory, and device trust.
As part of Cisco, Duo connects to Cisco Identity Intelligence for identity threat detection and response and identity security posture management. The service reports processing more than 1.3 billion authentications per month for customers across enterprise, small business, government, and managed service provider segments.
MSPs and internal IT teams use Duo for Multi-Factor Authentication (MFA), Single Sign-On (SSO), Passwordless Authentication.
Best for: organizations rolling out single sign-on, multi-factor authentication, or privileged access management.
Duo pricing depends on your organization's size, the modules you enable, and your contract term. Tools in this category are usually licensed by subscription, billed per user, per month, and scale with the users, endpoints, or sites you cover.
Public rate cards are not always available, and many vendors set final pricing through a quote or their MSP and reseller channel. To get an accurate Duo price for your environment, request a quote from Duo directly, or ask a managed IT provider that supports Duo to bundle licensing, deployment, and management into one predictable monthly cost.
The most common alternatives to Duo are other Identity, MFA & PAM vendors. Compare Duo with:
Duo is a cloud-based multi-factor authentication and secure access service, part of Cisco, that verifies user identity and device trust before granting access to applications.
Duo was founded in Ann Arbor, Michigan, in 2010 and has operated as part of Cisco Security since 2018.
Duo offers multi-factor authentication, single sign-on, passwordless authentication, the Duo Passport experience, Duo Directory, device trust, and adaptive access policies, with links to Cisco Identity Intelligence for threat detection.
Yes. Duo Security was founded in 2010 by Dug Song and Jon Oberheide and joined Cisco in 2018, where it operates as part of Cisco Security.