# What is Duo Security used for?

What is Duo Security used for?

##### Post Metadata
- Posted at: over 2 years ago
- Author title: Pinned by G2 as a common question



## Comments
### Comment 1

Duo Security, now part of Cisco, is primarily used to strengthen access security through multi-factor authentication (MFA) and identity protection. Organizations deploy it to verify that the person logging in is who they claim to be and that the device they’re using is secure before granting access to applications, networks, or sensitive data.
It works by adding an extra step to the login process—beyond just a password—such as approving a push notification on a mobile device or entering a code. This helps prevent unauthorized access even if credentials are stolen. Duo also supports a Zero Trust approach, meaning it continuously checks user identity and device health, ensuring that only trusted users and devices can connect. Businesses across industries like healthcare, finance, education, and government use Duo to reduce the risk of breaches, protect against phishing attacks, and comply with security regulations.



##### Comment Metadata
- Posted at: about 2 months ago
- Author title: Customer Expert | Your Business Partner



### Comment 2

I think it's used for many security features, but the only thing I used it for is to keep my authentication passwords safe by using it as an additional authentication method.

##### Comment Metadata
- Posted at: 3 months ago
- Author title: IT Security Consultant مستشار أمن المعلومات



### Comment 3

DUO is mandatoryly used for integrating Single sign on features with other 3rd party applications and platform and further allowing for modern multi factor authentications methods using, APP, SMS, POPup, CODE, Email etc.

##### Comment Metadata
- Posted at: almost 2 years ago
- Author title: Technology Leader/Consultant/Industry Expert




## Related Product
[Cisco Duo](https://www.g2.com/products/cisco-duo/reviews)

## Related Category
[Zero Trust Networking](https://www.g2.com/categories/zero-trust-networking)

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