My main use case for Cisco Duo is implementing two-factor authentication on users. I use Cisco Duo for two-factor authentication by enforcing it on users. Additionally, I am enabling posture assessment and health check on the device before allowing access to my organization, which adds extra security and ensures that I have implemented zero trust and separation of duties.
Head of Network And Security at BLUEPRINT BUSINESS TECHNOLOGY
Real User
Top 10
Nov 18, 2025
I use Cisco Duo for multi-factor authentication, remote access, and remote access authentication. I use Cisco Duo primarily for the multi-factor authenticator for remote access.
Information Technology Contractor at Insight global
Real User
Top 10
Nov 13, 2025
I am an IT system support person, and my use cases with Cisco Duo started out with helping clients at my firm and the firms my contracting agencies had by teaching them how to set up Cisco Duo and understand how to use it. Eventually, some of the systems I have access to on my own, usually the corporate systems and employee portals, were Cisco Duo-protected. It has been a split between using Cisco Duo and Microsoft Authenticator, depending on how the MFA has been set up. I started out as IT support, helping people install Cisco Duo on their Android and Apple devices, and I believe they actually had a computer client. Eventually, I had to use it in my own work to authenticate and gain access to the systems I support. Moreover, I have seen a lot of it used to access employee portals, either by end-user employees or my own employee portals. My last access to Cisco Duo involved helping people either activate their Cisco Duo accounts on their individual Apple or Android devices, or if they were locked out, unlock their accounts or move them over to a new device.
Senior Network Engineer at a educational organization with 1-10 employees
Real User
Top 10
Jun 9, 2025
My main use case when using Cisco Duo is MFA into everything: email, making teachers MFA, and mostly email. We are rolling it out to other on-site resources that we have as well.
Director, Customer Success at a tech consulting company with 1,001-5,000 employees
Real User
Top 20
Jun 9, 2025
The main use cases for Cisco Duo are for multi-factor authentication and being able to bring your own devices securely. We don't use Cisco Duo in our organization. We sell the product to our customers.
Identity and Access Management Principal at Mobily
Real User
Top 10
Apr 15, 2025
I use Cisco Duo ( /products/cisco-duo-reviews ) for Multi-Factor Authentication (MFA) ( /categories/multi-factor-authentication-mfa ) and Single Sign-On (SSO) ( /categories/single-sign-on-sso ) purposes.
Senior Information Security Engineer at DAAC System Integrator
Reseller
Top 20
Jan 14, 2025
At this point, the primary use case of Cisco Duo is to secure access to systems, applications, and data through multi-factor authentication (MFA), and we use Cisco Duo, which we also provide to other clients. We implemented it and use it ourselves. The IT and finance departments should be involved in the process.
My primary use case for Cisco Duo revolves around multifactor authentication, which serves as a secondary layer of security for all users within our organization.
On my end, Cisco Duo suits my account needs well. The application remains in place. We generally apply Cisco Duo across various use cases. Many customers, including banks and private organizations, use it for enhanced security, particularly in financial and general security tasks.
IT Director at a comms service provider with 1,001-5,000 employees
Real User
Aug 3, 2023
My background is in electrical engineering. I have roughly almost thirty years in the industry, mostly in telecom, but the last ten years or so in enterprise. I'm currently in Anchorage, Alaska working for an organization that's Alaska-native company, which is more or less a conglomerate of different business lines. They work on everything from government contracts with NASA to construction to oil field operations, it's a lot of different businesses. Our Duo Security implementation was done about a little over three and a half to four years ago. It was about six months before I joined the company. It was done in response to a breach in the company that involved compromised credentials. I have personally been using Duo for as long as I've been in this company, so about three years.
Telecom Engineer at a university with 1,001-5,000 employees
Real User
Aug 3, 2023
I work in an institution with about 6,000 people. I'm a telecommunications engineer. I use Duo Security as my access point when working remotely. Because I'm a telecommunications engineer, I have to have access to my systems remotely, and our VPN client requires that we go through second-level verification, for which we use Duo Security. Ours is on-prem. We have on-prem Duo Security. We do not use cloud at this time.
Director of Product at a tech company with 51-200 employees
Real User
Jun 15, 2023
We actually partner with Duo Security. We use the API to send a step-up on your phone for granting access to normal doors. You can tap your physical fob card or any other device at the door, and then receive a push notification. Depending on the success or failure of the authentication, we can either grant or reject access at the door. So it provides two-factor authentication. We use Duo for that purpose, as well as for an API and our internal VPN. However, with our product, we use Duo Security end-to-end. Duo Security has a blind spot when it comes to physical security. It doesn't cover scenarios where someone gains physical access to our network room, which involves different technologies outside of its scope. From my perspective, it can't be considered truly end-to-end in that regard. Nonetheless, Duo Security offers significant value for network security and VPN access. If we combine our product with Duo Security, then we can achieve comprehensive end-to-end security.
We have been using Duo Security for authentication in our in-house sales operations technologies. Therefore, as a Cisco partner, we regularly recommend Cisco Duo Security to our customers to help secure their VPN environments or connectivity to business-critical systems.
Network Engineer at a healthcare company with 51-200 employees
Real User
Jun 14, 2023
We try to use the solution for pretty much everything that we can use with it. The tool helps us to get into our dashboard APIs, and log into Citrix, VPN, and servers.
Solutions Architect at a mining and metals company with 1,001-5,000 employees
Real User
Mar 29, 2023
Our primary use case is multifactor authentication for our VPN users. We didn't have multifactor authentication before. After we integrated Duo Security with our systems, everyone has been using it, and it has given us peace of mind when dealing with VPNs.
Network Administrator at a retailer with 1,001-5,000 employees
Real User
Aug 5, 2022
We were really looking for two-factor authentication to secure our applications. We are basically looking for it to reduce risk. I am in the retail space at a company with more than 2,500 employees. It is SaaS. For VPN, we have our on-prem RADIUS servers, and there is an agent on our servers for RDP.
Senior Professional Services Engineer at a outsourcing company with 11-50 employees
Reseller
Jun 23, 2022
We have implemented it in our organization, and we also implement it for our clients. Duo Security is used to push multi-factor authentication while signing onto computers. We have integrated it with on-premises Active Directory, Azure Active Directory, and Office 365. We have also integrated Duo Security with Mimecast and Mac devices. We have a couple of other use cases, but predominantly, it is for multi-factor authentication. It verifies the identity of a user through a token or a mobile phone app.
Network engineer at a manufacturing company with 1,001-5,000 employees
Real User
Jun 15, 2022
We use it for MFA to secure our Outlook webmail and some other applications as well. We use Duo for pretty much anything that uses MFA. We were looking for increased security. We wanted to make sure that the person who is trying to log in to our services is actually who they claim to be. We wanted to lock down our applications more and provide extra security. We have some on-prem servers for the gateways and it's in the cloud as well.
Duo Security is multi-factor authentication, specifically a two-factor authentication. It authenticates users so that you can know they're legitimate in the network. It can be used for mobile banking. For example, when you're doing mobile or internet banking with your phone, when it uses OTP, it is using Duo Security.
IT Security manager at a energy/utilities company with 201-500 employees
Real User
May 19, 2021
When our users are connecting to our Cisco VPN, Duo effectively ensures that they are who they say they are by taking a second factor into account, such as the cell phone that was used to create their profile. To do this, it sends them a second mode of authentication, such as a PIN or push confirmation. It also geo-locks who is allowed to actually log into our systems. We have it locked to the continental United States and Puerto Rico, and one outsourcing firm that we work with. Once you have it set up, all you really have to do is add people to a group in the active directory and send them the instructions on how to do it. If you have a lower technical user base, you may have to walk them through it. But once it's set up, it really is automatic. Not a single person from our IT staff really needed anything other than the instructions. Of the 15 people in our test group, nobody actually needed instructions on how to use it either — beyond what I just wrote up and sent them. As we get to the older population in our company, the less technical population, we're probably going to have to walk them through it or hold their hands a little bit. Within our organization, there are currently 15 employees using this solution. Eventually, we will have all 221 office staff users with it set up. Still, we'll probably top out at about 80 users a day. We will increase the overall usage as our users increase. So, if we hire another 10 people, then we'll buy another license.
Head of IT and Security at a consultancy with 11-50 employees
Real User
Mar 30, 2021
Duo Security provides multi-factor authentication for anything that requires multi-factor authentication. It could be our internal corporate services, such as a single sign-on portal, or applications, such as Google Cloud.
Technical Specialities at a tech services company with 201-500 employees
Real User
Sep 3, 2020
In my job, we are using the 365 cloud service and there is a VPN solution. We are providing solutions to other enterprise-level customers, like banks. We do not require much cloud-based security because many clients need to have solutions on-premises. We already use RSA (Rivest, Shamir, and Adelman data security). We wanted to try to add some other cloud security options for the VPN and so we tried this product.
This solution provides MFA (Multifactor authentication) to protect access to the ERP system for a diverse population of employees at a public higher-education institution.
Cisco Duo is a cloud-based identity security platform safeguarding critical resources for any user and device worldwide. Known for its ease of use, Duo offers seamless protection across multi-cloud, hybrid, and on-premises environments.
Cisco Duo is designed to secure access with identity-first protection and provides extensive visibility throughout an organization's identity ecosystem. Offering multi-factor authentication, Duo facilitates easy integration and management, allowing teams to...
My main use case for Cisco Duo is implementing two-factor authentication on users. I use Cisco Duo for two-factor authentication by enforcing it on users. Additionally, I am enabling posture assessment and health check on the device before allowing access to my organization, which adds extra security and ensures that I have implemented zero trust and separation of duties.
I use Cisco Duo for multi-factor authentication, remote access, and remote access authentication. I use Cisco Duo primarily for the multi-factor authenticator for remote access.
I am an IT system support person, and my use cases with Cisco Duo started out with helping clients at my firm and the firms my contracting agencies had by teaching them how to set up Cisco Duo and understand how to use it. Eventually, some of the systems I have access to on my own, usually the corporate systems and employee portals, were Cisco Duo-protected. It has been a split between using Cisco Duo and Microsoft Authenticator, depending on how the MFA has been set up. I started out as IT support, helping people install Cisco Duo on their Android and Apple devices, and I believe they actually had a computer client. Eventually, I had to use it in my own work to authenticate and gain access to the systems I support. Moreover, I have seen a lot of it used to access employee portals, either by end-user employees or my own employee portals. My last access to Cisco Duo involved helping people either activate their Cisco Duo accounts on their individual Apple or Android devices, or if they were locked out, unlock their accounts or move them over to a new device.
The use case is good.
The main use case for Cisco Duo is authentication.
My main use case when using Cisco Duo is MFA into everything: email, making teachers MFA, and mostly email. We are rolling it out to other on-site resources that we have as well.
We use Cisco Duo for MFA on all of our devices. We're exploring single sign-on right now, but haven't implemented that yet.
Cisco Duo is for multi-factor authentication for all of our users and securing our assets off-campus.
My main use case for Cisco Duo is MFA.
The main use cases for Cisco Duo are for multi-factor authentication and being able to bring your own devices securely. We don't use Cisco Duo in our organization. We sell the product to our customers.
I use Cisco Duo ( /products/cisco-duo-reviews ) for Multi-Factor Authentication (MFA) ( /categories/multi-factor-authentication-mfa ) and Single Sign-On (SSO) ( /categories/single-sign-on-sso ) purposes.
At this point, the primary use case of Cisco Duo is to secure access to systems, applications, and data through multi-factor authentication (MFA), and we use Cisco Duo, which we also provide to other clients. We implemented it and use it ourselves. The IT and finance departments should be involved in the process.
We use Cisco Duo for Cisco Webex smart remote client.
My primary use case for Cisco Duo revolves around multifactor authentication, which serves as a secondary layer of security for all users within our organization.
On my end, Cisco Duo suits my account needs well. The application remains in place. We generally apply Cisco Duo across various use cases. Many customers, including banks and private organizations, use it for enhanced security, particularly in financial and general security tasks.
My background is in electrical engineering. I have roughly almost thirty years in the industry, mostly in telecom, but the last ten years or so in enterprise. I'm currently in Anchorage, Alaska working for an organization that's Alaska-native company, which is more or less a conglomerate of different business lines. They work on everything from government contracts with NASA to construction to oil field operations, it's a lot of different businesses. Our Duo Security implementation was done about a little over three and a half to four years ago. It was about six months before I joined the company. It was done in response to a breach in the company that involved compromised credentials. I have personally been using Duo for as long as I've been in this company, so about three years.
I work in an institution with about 6,000 people. I'm a telecommunications engineer. I use Duo Security as my access point when working remotely. Because I'm a telecommunications engineer, I have to have access to my systems remotely, and our VPN client requires that we go through second-level verification, for which we use Duo Security. Ours is on-prem. We have on-prem Duo Security. We do not use cloud at this time.
We use it for user logins for Windows workstations and Office 365. We have certain requirements for doing two-factor authentication.
We use Duo Security for multi-factor authentication for our VPN.
We use Duo Security for multi-factor authentication.
We actually partner with Duo Security. We use the API to send a step-up on your phone for granting access to normal doors. You can tap your physical fob card or any other device at the door, and then receive a push notification. Depending on the success or failure of the authentication, we can either grant or reject access at the door. So it provides two-factor authentication. We use Duo for that purpose, as well as for an API and our internal VPN. However, with our product, we use Duo Security end-to-end. Duo Security has a blind spot when it comes to physical security. It doesn't cover scenarios where someone gains physical access to our network room, which involves different technologies outside of its scope. From my perspective, it can't be considered truly end-to-end in that regard. Nonetheless, Duo Security offers significant value for network security and VPN access. If we combine our product with Duo Security, then we can achieve comprehensive end-to-end security.
We have been using Duo Security for authentication in our in-house sales operations technologies. Therefore, as a Cisco partner, we regularly recommend Cisco Duo Security to our customers to help secure their VPN environments or connectivity to business-critical systems.
We use Duo Security for multi-factor authentication.
We use Duo Security for authentication for all of our SaaS applications. We also use it for RADIUS authentication.
We use it for multifactor authentication for getting in with cell phones and PCs.
We try to use the solution for pretty much everything that we can use with it. The tool helps us to get into our dashboard APIs, and log into Citrix, VPN, and servers.
We use Duo Security to level up security and access to internal systems.
Our primary use case is multifactor authentication for our VPN users. We didn't have multifactor authentication before. After we integrated Duo Security with our systems, everyone has been using it, and it has given us peace of mind when dealing with VPNs.
Our primary use case for Duo Security is all user access to email.
We were really looking for two-factor authentication to secure our applications. We are basically looking for it to reduce risk. I am in the retail space at a company with more than 2,500 employees. It is SaaS. For VPN, we have our on-prem RADIUS servers, and there is an agent on our servers for RDP.
Primarily, it was used as remote access for VPNs. It expanded our security posture, due to the increase in people working from home.
We use it for two-factor authentication for end-user and administrator login. We wanted to secure our endpoints.
We have implemented it in our organization, and we also implement it for our clients. Duo Security is used to push multi-factor authentication while signing onto computers. We have integrated it with on-premises Active Directory, Azure Active Directory, and Office 365. We have also integrated Duo Security with Mimecast and Mac devices. We have a couple of other use cases, but predominantly, it is for multi-factor authentication. It verifies the identity of a user through a token or a mobile phone app.
We wanted multi-factor authentication across a variety of platforms.
We use it for MFA to secure our Outlook webmail and some other applications as well. We use Duo for pretty much anything that uses MFA. We were looking for increased security. We wanted to make sure that the person who is trying to log in to our services is actually who they claim to be. We wanted to lock down our applications more and provide extra security. We have some on-prem servers for the gateways and it's in the cloud as well.
Our web developers use Duo Security as a WordPress plugin to provide security for our websites.
Duo Security is multi-factor authentication, specifically a two-factor authentication. It authenticates users so that you can know they're legitimate in the network. It can be used for mobile banking. For example, when you're doing mobile or internet banking with your phone, when it uses OTP, it is using Duo Security.
When our users are connecting to our Cisco VPN, Duo effectively ensures that they are who they say they are by taking a second factor into account, such as the cell phone that was used to create their profile. To do this, it sends them a second mode of authentication, such as a PIN or push confirmation. It also geo-locks who is allowed to actually log into our systems. We have it locked to the continental United States and Puerto Rico, and one outsourcing firm that we work with. Once you have it set up, all you really have to do is add people to a group in the active directory and send them the instructions on how to do it. If you have a lower technical user base, you may have to walk them through it. But once it's set up, it really is automatic. Not a single person from our IT staff really needed anything other than the instructions. Of the 15 people in our test group, nobody actually needed instructions on how to use it either — beyond what I just wrote up and sent them. As we get to the older population in our company, the less technical population, we're probably going to have to walk them through it or hold their hands a little bit. Within our organization, there are currently 15 employees using this solution. Eventually, we will have all 221 office staff users with it set up. Still, we'll probably top out at about 80 users a day. We will increase the overall usage as our users increase. So, if we hire another 10 people, then we'll buy another license.
Duo Security provides multi-factor authentication for anything that requires multi-factor authentication. It could be our internal corporate services, such as a single sign-on portal, or applications, such as Google Cloud.
We are using it for perimeter protection.
We use Duo Security to access databases, which are in the cloud. It's two-factor authentication mostly.
In my job, we are using the 365 cloud service and there is a VPN solution. We are providing solutions to other enterprise-level customers, like banks. We do not require much cloud-based security because many clients need to have solutions on-premises. We already use RSA (Rivest, Shamir, and Adelman data security). We wanted to try to add some other cloud security options for the VPN and so we tried this product.
I am VP of product in our company and we are a customer of Duo Security.
This solution provides MFA (Multifactor authentication) to protect access to the ERP system for a diverse population of employees at a public higher-education institution.