Duo Security
Cisco's MFA and zero trust access platform known for ease of deployment
Pricing: Free (up to 10 users) / Essentials $3/user/month / Advantage $6/user/month / Premier $9/user/month
Reviewed by the CyberSecTool editorial team against the public sources cited below · Last reviewed February 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, serving as a practical entry point for organizations building zero trust security architecture.
- ✓ 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
- • 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
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Quick Info
| 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 |
Last updated: Feb 20, 2026
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