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Protect your workforce with simple, powerful access security.

We're Duo. Our modern access security is designed to safeguard all users, devices, and applications — so you can stay focused on what you do best.

Secure access for any user and device, to any environment, from anywhere.

Get the peace-of-mind only complete device visibility and trust can bring.

Respond faster to threats with an easy‑to‑deploy, scalable SaaS solution that natively protects every application.

[...] we see Duo serving as a core technology building block to enable our zero trust security philosophy. Read the Customer Story
— Vivian Ho, Software Engineer, Lyft

Designed for teams of all sizes. Engineered to protect your mission.

Duo's access security shields any and every application from compromised credentials and devices, and its comprehensive coverage helps you meet compliance requirements with ease.

Intuitive authentication for users. Powerful flexibility for companies.

Duo natively integrates with applications to provide flexible, user-friendly security that's quick to roll out and easy to manage. It's a win, win, win for users, administrators, and IT teams alike.

See Integration Documentation

Perimeterless workforce protection. Secure access worldwide.

Lay the foundation for your zero-trust journey with multi-factor authentication, dynamic device trust, adaptive authentication and secure single sign-on for every user and device.

Learn About Zero-Trust Security

Cisco Named a Leader in the 2020 Forrester Zero Trust Platform Wave

Zero trust has become the gold standard for information security. It's a rigorous approach, requiring that companies secure access across applications and networks, from any user, device and location. With outstanding security solutions like Duo at its core, Cisco's comprehensive zero-trust platform has become a leader, ranking among the top providers evaluated in Forrester's 2020 Zero Trust Platform Wave. Read the report to learn more.

Read the Report