TL;DR - Duo Security
- Duo Security is a multi-factor authentication platform for securing access to applications
- It provides 2FA, device trust, and single sign-on with easy deployment across any app
- Free up to 10 users, paid plans from $3/user/month
Pricing: Free plan available
Best for: Growing teams
Score: 83/100
Pricing
Freemium
View pricing Duo Security offers a free plan with paid upgrades.
About Duo Security
Duo Security protects access with multi-factor authentication that's actually usable. Push notifications to phones, hardware keys, biometrics—2FA that doesn't frustrate users.
The user experience is thoughtful. Device trust policies add security. Cisco backing provides enterprise credibility.
Organizations implementing MFA choose Duo because it balances security with user experience.
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Duo Security FAQ
Free for up to 10 users. Essentials from $3/user/month. Advantage from $6/user/month. Part of Cisco.
Duo Security is multi-factor authentication. Protect logins with 2FA. Acquired by Cisco.
Duo focuses on MFA. Okta is full identity platform. Duo for simple MFA; Okta for enterprise IAM.
User logs in, Duo sends push notification. Approve on phone to complete login. Simple and secure.