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Easy, Flexible Cybersecurity Solutions for Everyone 

Securing your entire organization has never been easier. Duo’s two-factor authentication, remote access and access control products deploy fast in any environment. We help keep companies safer than ever before with minimal downtime and optimized productivity.

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Stay Ahead of Cybersecurity Risks with Software that Works with You

As a part of Cisco Secure's comprehensive suite of security products, Duo helps your organization — and every user in it — achieve security resilience. Our product is easier to use, protects any device, integrates with any application — and it works!

Our customizable solutions offer dynamic cybersecurity that evolves with your organization. Adapt to the changing threat landscapes faster with full-scale visibility and unmatched reliability, all from an interface so simple that anyone can use it.

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Simple Tools for Complex Security Needs

Duo’s MFA (multi-factor authentication) and 2FA (two-factor authentication) app and access tools can help make security resilience easy for your organization, with user-friendly features for secure access, strong authentication and device monitoring.

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Multi-Factor Authentication (MFA)

Quickly and securely verify user trust with every access attempt.

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Remote Access

Establish strong security for your remote users.

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Adaptive Access

Get granular security tailored to your users and their access context.

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Device Trust

Know the health of every device accessing your applications, managed or not.

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Single Sign-On (SSO)

Provide simpler, safer access with just one username and password.

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Our Products

Get to know how Duo meets your security needs.

The Life and Death of Passwords

Why did information security evolve into a password-default model, and how can we correct for passwords' vulnerability? Get insight into how we got here and hear from security experts on the future of passwordless security.

Watch Our Passwordless Documentary

Read About Cisco's Multi-Million Dollar Return on Investment (ROI) with Duo Security

“Since Duo is platform agnostic, we know that we can protect every application, regardless of where it lives. Duo’s ability to easily protect any application reduces my team’s effort, freeing them up to focus on other important work.”

-Josephina Fernandez, Director of Security Architecture & Research at Cisco

Read The Customer Story All Customer Stories

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Solutions for Every Security Goal

From compliance to planning for security’s future, Duo has the access and authentication tools to help you get where you need to be. See what we can do for you. 

Discover Security Solutions

Use Cases for Simple Security Strategies

  • Zero Trust: Secure the perimeterless, work-from-anywhere world with Duo's Zero Trust capabilities for the workforce.
  • Passwordless: Give users a frictionless login experience, while strengthening against overall security risks.
  • Phishing Prevention: Secure your workforce against phishing attacks with strong multi-factor authentication, device trust and more.

Supporting Your Security Goals

  • Meet Compliance with Duo: Meet requirements for compliant, effective security in your industry and company.
  • Duo Documentation: Duo supports your devices and applications with easy-to-use installation and configuration documents.
  • Duo Care and Duo Quick Start: Our experts are at your service with premium user-friendly customer support.

New and Noteworthy

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Keep Your Business Moving with Cisco

A cyber attack can grind everything to a halt. Cisco security delivers a complete set of security solutions, all designed to integrate seamlessly with third party technology to deliver resilient, end-to-end protection. If it’s connected, it’s protected.

Watch How You Can Secure Your Enterprise

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Discover the 2022 Trusted Access Report!

Cisco Secure Access by Duo is proud to unveil our 2022 Trusted Access Report! Find out what's new in access control security and explore our most recent user data to see how trusted access works for organizations like yours.

Get the Free 2022 Trusted Access Report

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Duo MFA for Epic Hyperdrive

Learn how Cisco Secure Access by Duo Multi-Factor Authentication (MFA) helps secure Epic Hyperdrive Electronic Prescriptions for Controlled Substances (ECPS) service against Cyber Threats.

Discover Duo for Epic Hyperdrive in Action

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Guide to Zero Trust Maturity

At Cisco, we believe the promise of a zero trust security strategy should be securing access in a way that frustrates attackers and not users. Find quick wins in your zero trust journey and continue making progress with best practices from enterprises with mature implementations of zero trust. 

Discover Cisco's Guide to Zero Trust Maturity

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What Is MFA?

Cisco Secure Access by Duo is a leading provider of multi-factor authentication (MFA) solutions that help companies boost data security, meet compliance regulations and more. Explore MFA on our new “What Is MFA?” page. 

What Is MFA? 

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Risk-Based Authentication

Cybersecurity and data security risks aren’t one-size-fits-all. For a dynamic, evolutive security strategy, add risk-based authentication by Duo to your stack to holistically and effectively manage endpoint threats.

Download the RBA eBook

Your Next Step: Experience Duo now with a free trial.

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