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Are You Guarding Your Galaxy from Cyberthreats?

Duo provides superhero-level remote access technology with Multi-Factor Authentication (MFA), Passwordless and Single Sign-On (SSO). Take this 5-question quiz to find out how to guard against the galaxy of threats — for a chance to get Fandango Movie Tickets.

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Marvel movie characters defending their galaxy against threats similar to how Duo provides remote access protection with technologies such as multi-factor authentication, single sign-on and passwordless.

It's Here: Trusted Access For All

Get ahead of the game. Learn what it takes to protect everything that matters in our buyer’s guide. This buyer’s guide arms decision makers with the insight needed to find the one access management solution just as dynamic as the threat landscape they face.

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The Access Management Buyer's Guide offers 10 metrics for measuring success, as displayed on this tablet UI

CISO (chief information security officer) using cybersecurity auth app on monitor & a road indicating speed of Duo deployment

Duo Editions: Strong Security That Powers High Productivity

Cyber attackers are increasingly targeting gaps in weaker multi-factor authentication (MFA) implementations. That’s why Duo is bringing protection previously available only in Duo's most advanced edition to every Duo customer.

The editions lower the total cost of ownership, decrease risk of breaches and improve user productivity. Only Duo delivers peace of mind with strong security and increased productivity at an unmatched value.

View Editions & Pricing

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.

Company managed and personal device security icon

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.

A cybersecurity professional works remotely with Cisco Secure

Get Duo — and so much more

Build on Duo's strong authentication and device trust protections with more layers of defense against phishing and web-based attacks — in one step and all available as part of Cisco's Security Step-Up promotion. Here's your chance to secure all of your critical attack vectors — email, web traffic and credential theft.

Get Started with Security Step-Up Now

Best 2FA App!

Duo was recently named the best two-factor authentication app by the New York Times Wirecutter! With easy onboarding, optional backups and regular updates, Duo Mobile is the go-to app for simple, secure two-factor authentication. Check out what they had to say about Duo!

The New York Time Wirecutter says that Cisco Duo is the best 2FA app

An IT administrator uses Duo's device insight application interface

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

Join Us: The Ultimate Cisco Live Experience

Register to attend Cisco Live in Las Vegas, NV either in person or remotely via a global broadcast June 4-8, 2023. With over 1,000 technical and business sessions to attend, our experts will help you gain knowledge, cultivate a vision, build community, share experiences and explore the possibilities of IT.

Register to Attend Cisco Live

Defending with Duo webinar logo featuring Du

Defending with Duo: Get to Know Cisco’s Secure Access Solution

As much of the workforce shifts into a hybrid work model, securing trusted remote access is more important than ever. Join us for a product demo and Q&A session as we explore multi-factor authentication (MFA), zero trust and access with Duo.

Register Now!

Why Multi-Factor Authentication (MFA) Demands Single Sign-On (SSO)

Download your copy of our latest eBook to learn how you can combine MFA and SSO into a cohesive solution that's an essential part of a zero trust environment that enhances business resilience.

Discover How MFA and SSO Work Together

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

MFA users authenticate with cybersecurity multi-factor authentication