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Duo Security

Cisco's MFA and zero trust access platform known for ease of deployment

ToolIdentity & Access ManagementCloud

Pricing: Free (up to 10 users) / Essentials $3/user/month / Advantage $6/user/month / Premier $9/user/month

Reviewed by the Cyber Vendor Guide editorial team against the public sources cited below · Last reviewed September 2026 · How we review listings

What is Duo Security?

Duo Security, a Cisco company, is a multi-factor authentication and zero trust access platform. Duo is known for its ease of deployment, user-friendly push authentication, and broad integration with VPNs, cloud applications, and legacy systems. It provides device trust verification, adaptive access policies, and single sign-on, and can also serve as a full IAM solution with its own directory, lifecycle management, and provisioning capabilities, serving as a practical entry point for organizations building zero trust security architecture.

Best for: Organizations prioritizing easy-to-deploy MFA across VPNs, cloud apps, and legacy systems, especially those in Cisco networking environments

Pros

  • Easy to deploy. Fast MFA rollout times
  • Duo Push is the most user-friendly MFA experience available
  • Strong VPN and legacy application MFA support
  • Free tier for up to 10 users enables quick proof of concept
  • Cisco ecosystem integration adds network-level zero trust capabilities

Things to check

  • SSO capabilities are less mature than dedicated IAM platforms like Okta
  • Limited identity lifecycle management and provisioning features
  • Application integration catalog much smaller than full IAM platforms
  • Advanced features require Premier tier pricing comparable to Okta
  • Identity governance and access certification features are absent

Reported in public reviews and vendor documentation. See sources below.

Key Features

Push-based multi-factor authentication (Duo Push)
Device trust and health verification
Adaptive access policies based on user and device risk
Single sign-on with SAML and OIDC support
VPN and remote access MFA integration
Passwordless authentication with biometrics
Trusted endpoints and managed device policies
Integration with Cisco networking and security stack

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Sources & references

Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.

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Key facts

Pricing
Free (up to 10 users) / Essentials $3/user/month / Advantage $6/user/month / Premier $9/user/month
Model
Per-user monthly subscription with free tier
Founded
2010
Cloud
Yes
Self-hosted
No
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Duo Security Alternatives

View all alternatives

Where Duo Security appears

Guides

Shortlists

Certifications

FedRAMP, SOC 2 Type II, ISO 27001