Primarily, it was used as remote access for VPNs. It expanded our security posture, due to the increase in people working from home.
CTO at a computer software company with 51-200 employees
Expanded our security posture, but needed better integration with our application stack
Pros and Cons
- "It was a simple way of providing two-factor authentication for remote access when we hit the COVID pandemic. It was very easy and quick to get it going."
- "We found it difficult to integrate it into our broader product family of Microsoft tools and other applications used across our organization."
What is our primary use case?
How has it helped my organization?
It certainly gave us a much more confident security posture as far as users coming on.
Having all resources be external is reasonably important for us. Zero trust is certainly a target. Not that we are there yet, but we would expect everything to be considered mostly untrusted.
It eliminated trust for remote access, but not from inside our organization.
It was a simple way of providing two-factor authentication for remote access when we hit the COVID pandemic. It was very easy and quick to get it going.
What is most valuable?
Simple authentication for VPN was our primary function, and it worked well for that.
As far as remote access, simple access, and authentication to gateways, it was perfect.
Distributed access for ISE has been pretty strong for remote access and works very well.
It has very strong network connectivity, which works reliably and well. It was very easy for people to connect and the app worked as it should. Just once people connected, they typically had to use a different tool from that point on.
Duo applies and maintains well network connectivity across campus and remote locations. Remote access from people's homes and branches is also strong. Network connectivity is its strength and does that well.
What needs improvement?
We found it difficult to integrate it into our broader product family of Microsoft tools and other applications used across our organization. So, we have pulled back from this solution a little bit. It was easier to use Microsoft MFA, which integrated with everything and still did the two-factor authentication that we needed.
There is nothing wrong with the product, as far as its functionality. It was just the breadth of support. It got harder and harder to integrate.
For what it does, it is fantastic. Once we started hitting Microsoft Office stacks, we then began to find its limitations.
It is not so good for securing access to our application and network. We found it harder to integrate, particularly with the Office stack, which is our primary application stack. We did get it working with a few other cloud applications that we were working with as part of our single sign-on story. However, it certainly wasn't easy to integrate in-house.
It created another step for users who don't know about the benefits, as far as the corporate benefits. I wouldn't consider having another app on their phones and having another thing to deal with a positive for our user community.
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Cisco Duo
February 2026
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For how long have I used the solution?
My organization has been using it for about two and a half to three years, since around the beginning of the pandemic.
What do I think about the stability of the solution?
Stability was good. It was well-designed and simple to implement. Its cloud interaction went very well. We never had any major stability issues. Yeah. We had nothing to complain about regarding its operational functionality.
What do I think about the scalability of the solution?
We are a relatively small shop. It was well within our sizing. We never saw any issues with scaling. Obviously, the indications would be that it will scale very well, but nothing we had to experience with.
How are customer service and support?
We didn't encounter the technical support much. Things worked very well. Functionality and reliability were never a problem.
We asked a few questions about integration and so on. I think we got good answers back. We have had no big complaints, but we didn't have a lot of interaction with them.
Which solution did I use previously and why did I switch?
We did not previously use another solution. We brought Duo in as a tool that we could rapidly and easily deploy. It did that job. We actually removed it later, as our primary tool, because we could achieve what we needed with a more integrated single multi-function tool (Microsoft MFA).
Which other solutions did I evaluate?
Duo brings in another application for users to deal with. Whereas, Microsoft integrates with their single authentication stack, allowing us to handle their own personal banking accounts and personal two-factor authentication needs in one app. This isn't Duo's strength, and it's not what we see Google and Microsoft doing out in the cloud.
Single-pane-of-glass management is important for us, but not critical, because fewer management points are better. Duo didn't provide a single pane of glass because of our different application stacks. Whereas, at least Microsoft Authenticator has allowed us to deal with most applications as well as their deep integration with Office.
Duo needs to adopt the same kinds of concepts that we see from all the major authentication tools, such as Google Authenticator, Microsoft Authenticator, third-party password tools like Bitwarden, and Secret Server from Delinea. All of these are beginning to incorporate more functions into them as a single security tool, protecting me with authentication codes and six-digit codes that interact with Google, Microsoft, and any of those vendors as part of the tool. There are more functions, fewer tools, and less user impact, which are all benefits. I don't think Duo showed us that as a single tool. Duo did its job really well, but there are many jobs that have to be done.
What other advice do I have?
Resilience security is all about business continuity. Resilience is an expected function of that, which is necessary and not optional.
For businesses wanting to build more resilience, I would say, "Keep it simple," and fewer moving parts is better. That is one of the reasons that we ultimately moved away from Duo. Not because anything was wrong with it, but we could collapse two functions down into one. I think simplicity is really critical. It reduces the amount of time our staff has to spend on it, making things easier. Simplicity would be my number one reason for building resilience into an organization. It allows you to understand better how you are dealing with threats and more simply respond to threats.
We are a valued reseller who works with Cisco and other vendors. We are primarily a Cisco networking shop across eight locations with 120-odd users who are mostly working from home or at least part-time working from home post-COVID. We have two major offices, a small data center, and five other locations, which are all remote access, using Cisco DMVPN. Microsoft is the application stack that we primarily use, plus cloud applications, and Juniper Mist for our wireless.
I would rate it as seven out of 10. In the world of network security, it is outstanding and very strong. I have a lot of positive things to say. I think that it needs to be much more seamlessly integrated with today's application stack.
Disclosure: My company has a business relationship with this vendor other than being a customer. Reseller.
Lead Support Tech at a non-profit with 51-200 employees
An easy-to-use and easy-to-deploy product that enhances security and gives insight into policy violations
Pros and Cons
- "The solution is easy to use."
- "The product could be more intuitive on the app."
What is our primary use case?
We use Duo Security for 2FA during logins.
What is most valuable?
We needed 2FA for compliance. We already used Cisco across the board, so it made sense to use the product. We benefit from using the solution. We were unaware that some users were sharing logins and doing some things that went against policies. Once we had Duo Security in place, we realized that codes were not going where they needed to, and we could sort that out. The solution is easy to use.
What needs improvement?
We have some users that don't prefer to use the app. The product could be more intuitive on the app. We have users that are a little dated in their technology adoption. Telling some of our non-intuitive users to use the app was a little struggle.
For how long have I used the solution?
We implemented the solution about a year ago.
What do I think about the stability of the solution?
We haven't had any issues with the solution’s stability at all. We've had no issues with it not being compatible anywhere.
What do I think about the scalability of the solution?
We're a pretty small shop. We have less than 100 employees, so scalability is not a huge concern because there's not a lot of growth right now. However, bundling and provisioning the tool with any device is pretty easy.
How are customer service and support?
Support is good. We've had a couple of issues with the tool, and anytime we needed anything answered, we've got it resolved. Everything's been quick and reasonable. We generally expect to get answers the same day we have the problem, although it is not possible.
How would you rate customer service and support?
Positive
How was the initial setup?
To my knowledge, we didn't have any issues in the rollout. We tried to phase it out over the course of a few weeks. Once we got a few of them tested, we went to the next phase. Then, we decided to go 100% with it because we saw no problems doing a stack of implementation. It was pretty good.
What was our ROI?
My organization sees an ROI on the product. If there's any attempt at a breach, then we're confident that it will be stopped.
What other advice do I have?
The solution is deployed on the cloud. We're pretty sure it's on our end with the telephone system. We have set up automated phone calls to the desk phones, and sometimes they don't go through or are delayed. However, we've been looking through it and are pretty sure it’s on our telephone system.
I rate the product a seven out of ten in securing our infrastructure from end to end. It's pretty straightforward for people that have done 2FA before, but we have a lot of users that haven't. We have to do a little convincing to get them to do the additional step.
We have saved time by using the tool so that we can dedicate our time to other valuable projects. The tool’s Self-Service Portal helped us with uptime. The solution is good at establishing trust for every access request, no matter where it comes from.
We have policies for our machines and for our phones. The solution really opened our eyes to what people needed to do on their phones and what they were actually bringing to the building.
Duo Security absolutely helped our organization improve its cybersecurity resilience. Our employee and guest network are separated. However, people were bringing their personal devices and doing work-related things on them that we weren't aware of. The solution allowed us to see a little bit more of what was going on at the user level.
Duo Security was the first implementation in our organization. We did not use similar solutions before. Choosing the solution was a pretty quick process. Duo Security was the first one that we demoed. We didn't have any issues, so we went right with it. We chose it because of its ease of use and implementation. We were able to roll it out fairly quickly, so there was no reason to look elsewhere.
We had some partner companies and sister companies that were starting to have breaches. They told us that if we had 2FA, it wouldn't have been a problem.
Overall, I rate the solution a ten out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
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Cisco Duo
February 2026
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Security Analyst at a university with 501-1,000 employees
Saves us time, establishes trust, and prevents phishing
Pros and Cons
- "The anti-phishing feature is the most valuable."
- "I would appreciate it if Duo Security could improve its integrations with Windows Hello."
What is our primary use case?
We utilize Duo Security to mitigate phishing and other similar attack vectors in general.
How has it helped my organization?
Our phishing attacks have significantly decreased. The number of compromises is almost nonexistent due to the implementation of Duo Security.
Duo Security's self-service portal has definitely helped us save a couple of hours per month.
Duo Security's ability for establishing trust is great.
What is most valuable?
The anti-phishing feature is the most valuable.
What needs improvement?
Previously, we encountered an issue with utilizing the passcode as part of the second factor; however, that has now been transformed into a feature.
I would appreciate it if Duo Security could improve its integrations with Windows Hello.
For how long have I used the solution?
I have been using Duo Security for five years.
What do I think about the stability of the solution?
Duo Security is stable.
What do I think about the scalability of the solution?
After Cisco purchased Duo Security, I was uncertain about its scalability. However, it appears that Cisco has granted them the freedom to pursue their own initiatives and has provided the necessary resources for them to achieve their goals.
How are customer service and support?
The technical support is excellent.
How would you rate customer service and support?
Positive
How was the initial setup?
The initial deployment took place five years ago, but during that time, we experienced some growing pains before reaching a satisfactory point.
What about the implementation team?
I was not involved in the implementation, but we did seek external assistance, which proved beneficial.
What was our ROI?
We have observed a return on investment with Duo Security in terms of anti-phishing and breach prevention.
What other advice do I have?
I rate Duo Security a ten out of ten.
We do not use Duo Security for end-to-end detection and remediation of threats.
Duo Security may not be the only solution available, but it is a fantastic choice.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Systems Engineer Virtualization at a engineering company with 501-1,000 employees
Improved our cybersecurity resilience with two-factor authentication.
Pros and Cons
- "It's pretty easy for users to figure it out."
- "From an administrative standpoint, I'd love to see it be a little better at remembering a device and location so that I don't have to continually authenticate. That's pretty much it."
What is our primary use case?
We use it for user logins for Windows workstations and Office 365. We have certain requirements for doing two-factor authentication.
How has it helped my organization?
Duo Security has improved our cybersecurity resilience with two-factor authentication.
Duo Security secures our infrastructure from end to end, especially in terms of what our end users are using. We get an alert if there's something unusual, which doesn't happen often, but it allows us to look at and remediate any issues. Fortunately, we haven't had any attacks that I know of, so it has been good.
Duo Security does its job in terms of user authentication and device verification for helping to prevent identity-based attacks.
Duo Security reduces the risk of breaches. I haven't seen anything that I would switch to.
Duo Security seems to work for establishing trust for every access request, no matter where it comes from. That's something that we ask of such solutions. I don't want to have to interact with it very much.
What is most valuable?
It's pretty easy for users to figure it out. We've largely non-technical people where I am. At first, there was a little bit of a speed bump trying to get everybody to understand why we were using it, but it wasn't too bad. Everybody pretty much embraced it. Its adoption happened over a course of a couple of weeks. It was fairly smooth.
We also use Cisco Secure Email and Cisco Umbrella. It integrates pretty well with them. We haven't had any issues.
What needs improvement?
From an administrative standpoint, I'd love to see it be a little better at remembering a device and location so that I don't have to continually authenticate. That's pretty much it.
For how long have I used the solution?
We've been using it in our company for two years.
What do I think about the stability of the solution?
Its stability is good. We haven't had any outages.
What do I think about the scalability of the solution?
Its scalability is also good. We haven't had any issues expanding it to everything.
How are customer service and support?
When I've had to engage with them, which is occasionally, their support has been good for me. I know our network engineer has run into an issue here and there, but I don't specifically know why. Personally, I haven't had any problems. I'd rate them a ten out of ten. They have solved everything so far.
How would you rate customer service and support?
Positive
How was the initial setup?
I was not involved in its implementation, but I know it was smooth. I didn't hear of any issues, so it was pretty simple for us.
We have a hybrid deployment.
What about the implementation team?
I'm pretty sure we do most of the things through Zones. They are good. I'd recommend them.
What was our ROI?
We've seen an ROI. We had to have it. It meets our needs.
Which other solutions did I evaluate?
We evaluated Microsoft's two-factor authentication. Other than that, we pretty much went straight for Duo just because we were in that ecosystem already. We didn't want to embrace Microsoft stuff. This was a better fit for what we needed. We were already in the Cisco ecosystem.
The Microsoft solution was also a bit limited. We were less likely to wire other devices. It was for Microsoft products at that time, but I don't know if it's changed.
Duo Security considers all resources to be external. That was a part of the reason we adopted it. That was the main difference between the Microsoft solution and this one. We've integrated it with single sign-on. It's good.
What other advice do I have?
It's a good product. We've been pleased with it. There are no complaints.
I'd rate it a ten out of ten because I don't know what's better than this.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
VP Enterprise Architect at a financial services firm with 5,001-10,000 employees
Provides a single log in place for all SaaS applications and helps in RADIUS authentication
Pros and Cons
- "Since Duo Security provides a single place to log in for our SaaS applications, we don't have to manage user accounts and remember passwords for each specific application."
- "Duo Security should better organize its tile feature to organize applications better."
What is our primary use case?
We use Duo Security for authentication for all of our SaaS applications. We also use it for RADIUS authentication.
How has it helped my organization?
Duo Security makes logging into all our applications easy with one stop for all our activity there. We use Cisco across the board for networking, and we love Cisco.
What is most valuable?
Since Duo Security provides a single place to log in for our SaaS applications, we don't have to manage user accounts and remember passwords for each specific application.
What needs improvement?
Duo Security should better organize its tile feature to organize applications better.
For how long have I used the solution?
We have been using Duo Security for about three years.
What do I think about the stability of the solution?
Duo Security's stability is good, and we haven't had any issues.
What do I think about the scalability of the solution?
Duo Security's scalability is good. We are a fairly large organization but haven't had any scalability issues.
How are customer service and support?
Duo Security's technical support is great. They do a better job on the Duo side than on the networking side for support.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
We've used Okta in the past. Okta has a really good auto-login feature. Duo Security can do the same thing, but Okta might do it a little bit better. It just automatically logs in if it's part of your profile.
We switched to Duo Security because of our relationship with our account reps.
What was our ROI?
We have seen a return on investment using Duo Security because it saves time.
What's my experience with pricing, setup cost, and licensing?
Duo Security's pricing is good, fair, and very comparable to today's market.
What other advice do I have?
Duo Security Self-Service Portal has significantly helped free up our IT staff for other projects. Instead of managing thousands of accounts across hundreds of SaaS applications, it's all in one spot now. Duo Security has probably saved us four or five hours at least.
I think Duo Security does a great job of establishing trust for every access request, no matter where it comes from.
It is very important for our organization that the solution considers all resources to be external because it frames the activity as zero trust, and that's how we run our network to zero trust across the board. So when you treat all resources as external, we want to lock them down every time and not just have random passwords floating everywhere.
Duo Security will significantly simplify the life of someone who wants to improve cybersecurity in their organization, and they should definitely try it.
Overall, I rate Duo Security ten out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Network Technician at a comms service provider with 11-50 employees
Helps reduce the risk of breaches
Pros and Cons
- "It's a lot easier for our end users to connect to our network. You don't have to type in a code. You get push notifications, that's probably the best thing about it. The fewer clicks they have to do to be online, the better it is. They can easily get into the network and do remote work."
- "I'd like to see it integrated into other applications. I know there are some integrations, but I haven't been able to explore that any further."
What is our primary use case?
We use Duo Security for multi-factor authentication for our VPN.
How has it helped my organization?
We didn't have any MFA previously. Adding that extra layer of security helps.
Duo Security has been pretty good for securing our infrastructure from end to end so that you can detect and remediate threats. We've seen several of our employees leave the country, and we see their connections trying to go through and so forth. We can either add them to allow them access or keep denying that access, and we get alerted to that.
It is pretty good in terms of user authentication and device verification for helping to prevent identity-based attacks. Your device is preauthorized. If somebody steals your device, they still need to know your password. That works out pretty well.
Duo Security helps reduce the risk of breaches. If I had known about it sooner, I'd have got it sooner.
The Self-Service Portal has helped free up our IT staff. Our guys spend a little time, and they can go in and look at how to do things and how to set things up. It makes things a little easier.
Duo Security establishes trust for every access request, no matter where it comes from. We really limit where we cannot be accessed from. It helps to make sure whoever we're letting in is who they're supposed to be.
Duo Security considers all resources to be external. If you treat everything as a threat, you're safer that way.
It has helped our organization improve its cybersecurity resilience.
What is most valuable?
It's a lot easier for our end users to connect to our network. You don't have to type in a code. You get push notifications, that's probably the best thing about it. The fewer clicks they have to do to be online, the better it is. They can easily get into the network and do remote work.
What needs improvement?
I'd like to see it integrated into other applications. I know there are some integrations, but I haven't been able to explore that any further.
For how long have I used the solution?
I've been using Duo Security for about the last 18 months.
What do I think about the stability of the solution?
It has been awesome. It's been a ten out of ten.
What do I think about the scalability of the solution?
I haven't had a deal with that.
How are customer service and support?
That's pretty good, but we didn't have to use them for this product. In general, Cisco support has been excellent. I'd rate them a nine out of ten.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
We didn't have MFA. This was our first one. We were using open-source VPN software and decided that we needed to add MFA. We didn't want to patch a bunch of different things together. Cisco AnyConnect and MFA together worked out very well. We also had a Cisco Firepower firewall, and we decided that one vendor for all of it would make it much easier. Its price was also very reasonable. It made it easy for us to make that decision.
How was the initial setup?
It was straightforward. For most things that I've dealt with from Cisco, I've had to do a lot of research to find things, but with Duo Security, everything was right there for us.
What about the implementation team?
We did it in-house. It was easy.
What was our ROI?
Less time is spent trying to figure things out with a bunch of different software. By having one vendor, there's not a lot of extra work that our guys have to do to keep maintaining that.
What's my experience with pricing, setup cost, and licensing?
Pricing was very reasonable.
What other advice do I have?
To someone researching this solution who wants to improve cybersecurity in their organization, I'd say that definitely give it a look. It's easy to set up. It was very easy for us to set up. We even had our Cisco team call us and make sure we had everything going. It was almost no effort, so it's worth a try.
I'd rate Duo Security a ten out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer. MSP
Program Manager at a tech services company with 10,001+ employees
Provides security and flexibility, and comes with great support and at-par licensing
Pros and Cons
- "The flexibility is the most valuable feature. We use it for the app on the phone. When we're at different locations, the phone is usually there, so we can use that. It has just been a very flexible option."
- "For upgrades, there should be a better notification of when they're coming out. We always have a testing phase, so we need to be ahead of it. It takes us longer before we can upgrade to the newest version."
What is our primary use case?
We use Duo Security for multi-factor authentication.
How has it helped my organization?
Duo Security helps with multi-factor authentication. It gives another level of security for authentication and logging devices. It's just more secure.
It does a very good job of securing our infrastructure. It enables us to be more secure and provides another level for our users and admins.
It definitely increases security in our work environment. I've also used it at school for logging into my system there. It's good for both scenarios. It's very user-friendly.
It's very good for user authentication and device verification for helping to prevent identity-based attacks. The only thing would be if you lose your phone or something like that, then it breaks the whole setup, so it has been very successful in that.
Now that it has been implemented, it has freed up our IT staff's time. It has mostly been set up and go. We then forget about it till we have to update it.
It's very good for establishing trust for every access request, no matter where it comes from.
Duo Security considers all resources to be external which is an important aspect because of the way our network is set up. We've remote sites, and everyone at those sites also has the requirement to use Duo Security.
It's another level of the security level mechanism that we have. At this point, the way cybersecurity is going, adding more options that are not very heavy lifting for a user is very important.
What is most valuable?
The flexibility is the most valuable feature. We use it for the app on the phone. When we're at different locations, the phone is usually there, so we can use that. It has just been a very flexible option.
What needs improvement?
For upgrades, there should be a better notification of when they're coming out. We always have a testing phase, so we need to be ahead of it. It takes us longer before we can upgrade to the newest version.
For how long have I used the solution?
I've known Duo Security for four years.
How are customer service and support?
Their support is great. We use them a lot. It depends on what issues we're having, but we always get any service, so I'd rate them a ten out of ten. They're very responsive and very knowledgeable. They're more eager at points to get things figured out than we're ready to, which is good, but we have to step back.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
We didn't use any other solution before. Its integration with the rest of our products probably made us go for it.
How was the initial setup?
Its deployment is easy, but getting users bought in and starting to use it could be a bit difficult. That comes with any big change.
What was our ROI?
Our organization has definitely got a good return on investment on it.
What's my experience with pricing, setup cost, and licensing?
I haven't seen it in a while, but it's at par with everything else licensing-wise.
What other advice do I have?
Overall, I'd rate Duo Security a ten out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
CTO at a comms service provider with 11-50 employees
Makes the attack vector smaller and improves the security of our customer's networks
Pros and Cons
- "Multifactor authentication and secure two-factor authentication are the most valuable features. It's been around for a while, but now it's becoming an enforced behavior as opposed to something that you used to do as optional."
- "I'm not a big fan of relicensing products every year or two years, but that's the model at the moment. I prefer to go back to licensing perpetually or permanent licensing."
What is our primary use case?
We use a number of Cisco products specifically, Cisco Umbrella and Duo.
Our primary use case is to enhance our client's security and their digital security model; Secure DNS, malware protection, MFA, and MDM services for their premium devices and their office devices.
How has it helped my organization?
Cisco has improved our organization by making the attack vector smaller and improving the security of our customer's networks and by extension, enhancing our reputation.
Using Cisco has saved us time and money. It also saves us from the threat of a loss of money by cyberattacks. It saves us months of technical effort and loss of billable hours.
It has also helped to reduce our operating expenditures.
What is most valuable?
Multifactor authentication and secure two-factor authentication are the most valuable features. It's been around for a while, but now it's becoming an enforced behavior as opposed to something that you used to do as optional.
When it comes to securing infrastructure from end to end so that we can detect and remediate it, it's pretty good. It's a little proprietary. A lot of it is based around its own ecosystem and we've started looking at other solutions that are more open-source or a bit open to more collaboration. That's something that we're picking up with Cisco.
For how long have I used the solution?
I have been using Cisco solutions for two to three years.
How are customer service and support?
Their support is very good, especially at an executive level and account director level. They'll always find you the right person if they're not the right person to help you do something.
How would you rate customer service and support?
Positive
What was our ROI?
My own company and our customers have seen ROI from using Cisco. The customer specifically does not lose time anymore in cyberattacks, malware, and devices being affected or hijacked.
What's my experience with pricing, setup cost, and licensing?
I'm not a big fan of relicensing products every year or two years, but that's the model at the moment. I prefer to go back to licensing perpetually or permanent licensing.
What other advice do I have?
We chose Cisco because it's very good, very well understood, has a good reputation, and has a strong support community around it. There is good technical expertise if you need it.
I would rate Cisco an eight out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
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- What is the difference between SPML and SAML?
- How would you compare Cisco Duo Security with other Authentication Systems products?
- What is CAPTCHA and how does it work? How can you use it for Artificial Intelligence (AI)?
- What are some alternatives for UserLock?













