With Duo’s two-factor authentication (2FA), you add an extra layer of identity protection to your apps and systems, making sure users are who they say they are, every time.

Two-factor authentication adds a second layer of security, keeping your account secure even if your password is compromised. With Duo Push, you'll be alerted right away (on your phone) if someone is …

Secure all of your devices with one simple and easy authentication app: Duo Mobile, a two-factor authentication (2FA) and multi-factor authentication (MFA) solution.

Multi-factor authentication (MFA) is a secure, user-friendly way to protect access by requiring two or more identity verification factors to log in. With Cisco Duo, phishing-resistant MFA is simple to deploy …

Duo Security offers solutions to protect organizations from identity threats. Explore Duo identity security, phishing-resistant MFA, and other solutions.

Dec 1, 2025 · This step takes you to the "Passport" page where you can enable Duo Passport, which shares device and session information across OS login, web browsers, and applications so that your …

You can secure all of your devices with one simple and easy authentication app: Duo Mobile, a two-factor authentication (2FA) and multi-factor authentication (MFA) solution.

What is two-factor authentication (2FA)? Two-factor authentication (2FA) is a specific type of multi-factor authentication (MFA) that strengthens organizational security by requiring two different methods …

Discover Duo authentication methods, including authenticator apps, passwords and tokens, and biometrics. Duo offers secure, flexible access for every user.

Enter your current password and continue to the Duo two-factor authentication prompt, where you can verify your identity with Duo Push, a security key, or your choice from whichever verification methods …