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Duo Security

Push-button MFA that users do not revolt against.

4.5
(24 reviews)
Visit Website
  • PriceFree – $9/user/mo
  • Founded2010
  • HQAnn Arbor, USA
  • Employees1,000+

About Duo Security

Duo, now Cisco’s zero-trust arm, made multi-factor authentication tolerable: a push notification, one tap, done. Device health checks gate access from unpatched machines, and passwordless via passkeys is rolling forward. Deployment speed is its calling card, with directory sync and app integrations measured in days. Deeper zero-trust features climb the pricing tiers.

Key Features

  • Push-based MFA
  • Passwordless and passkeys
  • Device health verification
  • SSO capabilities
  • Risk-based policies

Pros & Cons

Pros

  • Users actually accept the UX
  • Fast rollout across apps
  • Device trust checks built in
  • Free tier for 10 users

Cons

  • Advanced tiers get pricey
  • Cisco integration push is noticeable
  • Reporting could go deeper

Frequently Asked Questions

Is Duo free?
Yes for up to 10 users, ideal for small teams starting MFA.
Does Duo replace Okta?
It overlaps on access; Okta leads full lifecycle identity, Duo leads authentication ergonomics.

Reviews

4.5

24 reviews

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Best For

Organizations rolling out MFA without a helpdesk mutiny.

Sources & Review Notes

Last reviewed: July 28, 2026

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