Identity is in crisis. Duo is the cure.

Duo flips the script on identity with security-first IAM that attackers hate and users love.

Seamless and secure

There’s no cutting corners when it comes to security. Cisco Duo goes beyond multi-factor-authentication (MFA), saves your team time, and easily integrates into your team’s workflow.

1.3b

monthly authentications

Identity security to help you play it safe

As modern threats evolve and advance, so should your defenses. Secure every sign-in, monitor and adjust individual permissions, and stay ahead of security risks.

Security-first IAM Phishing-resistant MFA Identity security World-class UX

Security at the core, not an add-on.

Everything you need in one place – Duo’s security-first approach to identity can be implemented as a full IAM infrastructure or side-by-side to secure and orchestrate what you already have.

Explore Duo’s security-first IAM approach

A woman with short dark hair is standing in a server room, holding and working on a Duo trusted device. A digital message box on the left side of the image displays a shield icon and the text

No phishing. No friction. No gaps.

Say goodbye to password overload and secure your team’s devices. Duo’s end-to-end phishing resistance and Passwordless authentication protects sign-ins, gives you easy access and permission control, and quickly identifies at-risk devices.

Learn about end-to-end phishing resistance

A close-up image of three people holding and using smartphones as trusted devices. The focus is on their hands and phones, emphasizing secure communication

See more. Stop more. Stay safe.

Know who’s logging in, what’s risky, and what to do next. Duo Identity Intelligence gives you the power to act before threats become problems.

Explore our unified identity intelligence

A cybersecurity agent looking at a display of data security analytics, including colorful graphs, logs of network traffic, and potential threat alerts.

First login. Only login.

Duo turns strong security into a smooth, seamless experience. One login gets users where they need to go with no friction, no fatigue and no slowdown.

Experience access without interruptions

Trusted user working on a laptop using Duo multi-factor authentication with a simple prompt to gain secure access

For teams of every size

From growing startups to established enterprises, Duo helps streamline access and provide tailored security needs to fit your business.

Find your solution

SMB

Flexible protection for growing teams. Phishing-resistant multi-factor authentication (MFA), single sign-on (SSO), and additional safeguards help you stay ahead of evolving threats.

Explore solutions for small to medium sized businesses

Enterprise

Scalable identity security for teams that need more comprehensive protection. Streamline identity management for every device.

Learn more about Enterprise solutions

Government

For the strictest safety standards, stay ahead of evolving threats with Duo’s advanced tools to protect confidential data.

Find solutions for local and federal government

Simple to set up, easy to use

Duo takes the guesswork out of security and reduces friction so your team can focus their time on moving your business forward.

Get started with a free trial

Trusted by industry leaders

See why businesses rely on Duo to simplify access, enhance security, and deliver peace of mind no matter the team’s size. Here’s what customers are saying.

See why customers choose Duo

A well-lit furniture showroom displays various modern living room furniture arrangements.

Our rollout was surprisingly quick. All the training and onboarding material was right there. We just downloaded it, added our banner, and sent it to our users. We had roughly 1,000 employees onboarded, registered, and using the product in less than 30 days. It was one of our fastest rollouts.

Read the customer story

Mark Rodrigue

Senior Network Engineer, Room & Board

Duo has proven to be one of those rare solutions that both improves the security of our company while simultaneously being easier for our employees to use.

Read the customer story

Mike Johnson

Former CISO, Lyft

An Amerigas propane delivery truck is parked in front of a house.

When we roll a technology out to users, we want to enable as much self-service as possible—not generate more help desk calls. Users shouldn’t have to wait for IT.

Read the customer story

Christopher Martin

Manager of Identity and Access Security, AmeriGas

Cisco Systems is a 2025 Customers’ Choice for the 'User Authentication' market on Gartner Peer Insights™ based on reviews submitted for Cisco Duo.*

Gartner Peer Insights Customers' choice 2025

Ready to secure your organization?

Experience for yourself why Duo is one of the most trusted access management tools. Try it for free, explore editions, and connect with security experts.

Start your free trial

See why Duo is the leader in identity security.

Compare editions

Find out which edition is right for your organization.

Contact sales

Connect with our sales team and learn more.

* Gartner, Voice of Customer for User Authentication, Peer Contributions, May 30, 2025.
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