Duo Security

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Read 123 Duo Security reviews and testimonials from customers, explore 93 case studies and customer success stories, and watch 19 customer videos to see why companies chose Duo Security as their Network + Endpoint Security

Duo Security is a cloud-based access security provider protecting the world’s fastest-growing and largest companies and thousands of organizations worldwide, including Box, Etsy, Facebook, K-Swiss, The Men’s Wearhouse, NASA, Palantir, Paramount Pictures, Random House, Toyota, TripAdvisor Twitter, Yelp, Zillow, and more. Duo Security’s innovative and easy-to-use technology can be quickly deployed to protect users, data, and applications from breaches, credential theft and account takeover. Duo Security is backed by Benchmark, Google Ventures, Radar Partners, Redpoint Ventures and True Ventures.

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Customer Rating Review Scorebased on 4251 reference ratings
4.7/5.0 (4251)
  • Market Leader 2025 2025
    Winter 2025Market LeaderIdentity & Access Management Software
  • Market Leader 2024 2024
    Fall 2024Market LeaderPasswordless Authentication Software

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Featured Testimonials

  • “We comply with state and federal mandates for Electronic Prescriptions of Controlled Substances by using Duo for two-factor authentication.”

  • “We chose to implement Duo Beyond because it aligns with our own vision of zero-trust security. When integrated with Sophos Mobile control, it helps us securely and confidently provide mobile access to our employees, and provides additional visibility into all assets that are accessing corporate resources.”

  • "You hear horror stories about trying to rev up security in your organization, but Duo is so easy to setup and integrate into your daily work flow. You don’t even notice it, plus you have the peace of mind of having this huge layer of security on."

Featured Case Studies

  • Altegra Health - Customer Case Study

  • Technology company Inflection deployed Duo's single sign-on (SSO) for convenient, secure access to cloud applications

  • The University of British Columbia deployed Duo and enrolled over 40,000 users in less than a year

Featured Customer Videos

Additional Duo Security Information & Resources

Read Duo Security Reviews, Testimonials & Customer References from 123 real Duo Security customers.

Browse Duo Security Case Studies, Customer Success Stories, & Customer References from 93 businesses that use Duo Security.

Watch Duo Security Customer Videos to learn why 19 businesses chose Duo Security.