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Gain insights from your identity data.

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Verify the identities of all users with MFA.

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Provide secure access to on-premise applications.

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Ensure all devices meet security standards.

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Provide secure access to any app from a single dashboard.

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Block or grant access based on users' role, location, and more.

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Whether you're considering a big-picture security strategy like zero trust, or you want to address a specific threat like phishing attacks, Duo has you covered.

Continuous Identity Security

Stop sophisticated identity-based attacks while providing a seamless authentication experience.

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This set of tools and policy controls ensures only the right users have access to applications and resources and under the right conditions.

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A zero trust model establishes trust in users and devices through authentication and continuous monitoring.

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Duo's comprehensive access security sets the stage for user-friendly, password-free multi-factor authentication.

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Secure your workforce against phishing attacks with strong multi-factor authentication, device trust and more.

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Duo’s dynamic solution detects and responds to potential threat signals to secure trusted users and frustrate attackers.

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Why Duo?

Why Duo?

Strong MFA Security that Doesn't Sacrifice Productivity

With Duo, you can have both, in a platform that integrates across your entire ecosystem. Every user, every device, no exceptions.

Why You Should Choose Duo

Have It All

Duo delivers peace of mind with strong security and increased productivity at an unmatched value.

Speed to Security

Reduce friction and automate processes so that end-users and administrators can focus their time on moving your business forward.

Next Level MFA

Duo continues to pioneer MFA-approaches that keep your business a step ahead of the next threat.

Protection and Productivity

Our Risk-Based Authentication reduces the burden placed on users so they can verify their identity quickly and get back to the task at hand.

Complete Coverage

Close the gap on your security perimeter and bring every user and every device under one secure roof.

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Duo Security is part of Cisco Security — find out how we make global security resilience easier than ever!

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Categories & Archive

Product & Engineering

February 9th, 2023 Hannah Mullman

Smarter Security with Duo’s Risk-Based Authentication

We're excited to announce that Duo's Risk-Based Authentication is now generally available, making it easy to enjoy frictionless and secure authentications.

Product & Engineering

February 7th, 2023 Seema Kathuria Colin Medfisch

Duo Single Sign-On (SSO) Support for OpenID Connect Soon in GA, Enabling More Secure Access

We're excited to announce that Duo SSO now supports OpenID Connect, making it easier for organizations to securely access more applications. Learn more.

Industry News

January 30th, 2023 Mary Kate

How to Become a Site Reliability Engineer: Never Stop Growing

SRE Manager Stacey Young is passionate about improving systems & empowering her team. Read her advice for engineers wanting to grow throughout their careers.

Product & Engineering

January 26th, 2023 Matthew Brooks

ACTION REQUIRED: Upgrade to Universal Prompt Now for Better Protection & User Experience

Learn how the Universal Prompt enabled advanced identity protection without causing friction for users. And learn how to upgrade to Duo's Universal Prompt.

Industry News

January 25th, 2023 David Luk

Weak Cipher, TLS 1.0, and TLS 1.1 Deprecation with Duo MFA

TLS 1.0 and 1.1 and some weak ciphers are insecure. Duo will help you to meet your compliance need by deprecating them in our offering in 2023.