Duo Security Reviews

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Reviews (1-25 of 32)

Shannon McNamara profile photo
November 08, 2019

Duo is quick and perfect

Score 10 out of 10
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Verified User
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Our entire organization uses Duo, in partnership with Okta for security log-ins. I love Duo because of how quick and easy it is, and it's a great way to make sure that all of our apps are duel certified when logging on to protect any PHI we are working with or using.
  • Quick use and access.
  • Offers a variety of features to use based on what you prefer.
  • Easy to understand and start using right away.
  • Once in a blue moon, the notification doesn't go through.
Duo Security is great to use if you are a company, like us, that deals with private health information. Duo is a very secure way to make sure that all information we use and work with is protected under security like Duo that requires you to log on with two devices.
Read Shannon McNamara's full review
Olivia Crellin profile photo
Score 6 out of 10
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Verified User
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Duo Security is used by my law firm as a second security block in order to VPN remotely into my firm's network. Duo is used anytime I am working on my firm issued laptop without being connected to (i) my firm's on-site internet or (ii) the firm's internal network. At present, I use Duo 2-3x a day as I work during my train commute.
  • Push notifications
  • User inter-face
  • Synching multiple platforms
  • Educating users on Duo use while working on airplanes or other restricted wifi networks.
  • Shortening push notification timing between computer login and push on mobile device.
  • Offline Duo capabilities or alternative Duo security options when mobile device is offline or dead.
Duo is well suited for company VPN purposes as a second security login to protect sensitive networks. I've seen it work well in the past for logging on to private university networks and systems. Duo has a ways to go to provide a software that works well without relying entirely on mobile devices which, we all know, can often be dead or offline which limits the functionality of Duo.
Read Olivia Crellin's full review
Aaron Coody profile photo
Score 10 out of 10
Vetted Review
Verified User
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We use Duo to secure multiple systems that have integration with Azure active directory. It's a one stop shop for multi-factor authentication. We are also evaluating with using Duo on PCs. It's working out very well. It has also reduced our compromised accounts by almost 100%.
  • Multi-factor authentication.
  • Integrates with multiple authentication platforms, i.e. Azure.
  • Secures accounts.
  • I don't see any real weaknesses, really.
  • User adoption.
We use Duo Security to secure multiple systems. We set it up with our Azure and use it for other products that can be integrated with Azure. We also used it for our ADA VPN and some PC logins. It a very versatile product.
Read Aaron Coody's full review
Robert Paul profile photo
Score 10 out of 10
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Verified User
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We use Duo for two-factor authentication for a few applications, like VPN and Outlook Web Access. Everyone who has a VPN account or access to email externally has an account, but that spreads across several different departments. Internal to IT, we also use it for two-factor on all of our servers for remote desktop.
  • Two-factor authentication - The whole point of Duo is 2FA, and it does it very well! We usually use the phone app (both for Android and Apple), but occasionally use the SMS or email options, depending on the user. We even have one user who uses a fob that generates codes!
  • Easy set-up - Duo has instructions for everything it supports, and setting up users is fairly intuitive and uncomplicated.
  • Supported applications - There's a long list of applications Duo supports and even some ways to use it generically.
  • The mobile app notifications occasionally do not come up, and I have to launch the application manually to approve connections. It's intermittent, so it's difficult to pinpoint why this is happening.
  • If a user gets a new phone, the set-up has to be done again, essentially. Modern phone OSes now tend to install apps and migrate settings, but that doesn't work for Duo. That's fine, but an option to replace a device quickly would be better. It also can't be done by the user themselves.
  • Because of the nature of how Duo works on devices, those devices do need some kind of Internet connection for the push. That's not a huge disadvantage, and most 2FA software with push notifications will have the same issue, but it's something to keep in mind if you're looking to purchase.
I think Duo does exactly what it needs to do and it's easy to set up, from an IT standpoint. It's also not very expensive, not when you consider the alternatives (or the risk of a data breach). It's great for any scenario where users with privileged access need to remotely access data, be that email on the web, remote servers, or a VPN connection.
Read Robert Paul's full review
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Score 9 out of 10
Vetted Review
Verified User
Review Source
The choice of implementing Duo Security was made to limit the impact of accounts compromise on both the users and the institution. Our core focus was to roll-out two-factor authentication on the community users who have access to the most critical data so our staff, faculty, contractors, and student workers are currently covered with Duo Security and have to use the solution to access their services.

Our goal is to roll-out the solution to our entire student population and help better protect their information and limit the impact of their accounts being compromised for the rest of the community.
  • Duo Security integrates easily with the most popular single sign-on solutions. This allows us to roll-out the solution really quickly on an existing infrastructure with limited amount of involvement.
  • Duo Security offers support for a multitude of second-factor mechanisms providing a flexible framework for implementing a solution tailored to a company's needs.
  • Duo Security offers great APIs that allow to perform some custom management and greatly increases the flexibility of the solution for the organizations that have custom development teams.
  • The single sign-on platform provides limited functionality when it comes to custom attributes stored on the platform. This prevents advanced deployment where those attributes (e.g. composite / calculated ones) are not stored in the directory (Active Directory, LDAP, etc.) instance.
  • Duo Security lacks an actual user portal that would allow the users to manage their devices. This is achievable using the APIs but requires development effort which is more complex in smaller structure without specific development team.
I feel Duo Security if well-suited for a couple of use cases:
  • Any implementation of two-factor authentication whether there is an existing single sign-on infrastructure or not. This is likely the strongest suit of Duo Security due to the breadth of services supported and the flexibility provided.
  • Simple implementation of single sign-on that does not require advanced attributes management. Organizations that do not have complex needs for single sign-on and just want to authenticate the users without doing advanced provisioning and complex attributes mappings would benefit from having single sign-on and two-factor authentication in the same platform.
Complex single sign-on environments that require deep management of attributes and permissions will likely benefit from more mature single sign-on platforms.
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October 17, 2019

Amazing security product

Score 9 out of 10
Vetted Review
Verified User
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Duo 2FA has been the best feature that we've implemented throughout the company. We can secure connections easily and with Duo Push as well as manage end-user access very easily. Duo Mobile provides 2nd Form Factor authentication in a variety of ways so it can be very flexible. Using an app on the phone, you can receive push notifications, you can receive a call from the system, or you can receive a text. Integration with the various systems was straightforward and simple for the most part. Knowing that a bad actor now has to not only steal credentials but obtain the user's mobile device information gives me a sense that we've done all we can realistically do. User enrollment and management is a breeze. And the best news, it's affordable protection.
  • Duo Mobile helps us ensure the security of remote access to our network.
  • Mostly 2FA for a multitude of protected systems. We have begun looking into expanding the MDM features for better administration of BYOD cellular devices.
  • We were able to install Duo Security easily in Android and iSO phones, also our clients and users could log in securely in their accounts. It offers comfortable prices in its plans. And it gives us alternatives to enter as text messages, pop-up messages, and phone calls.
  • Automatic notifications do not arrive instantaneously if the person who uses Duo does not have coverage on his cell phone or device.
  • The mobile application does not perform well. It would be nice if it could be improved. Also, it would be great to add more native apps. It would nice if users could lower the license usage count for the 90-day period provided.
  • Once 2FA authentication is enabled, it is difficult to have to deal with the situation where you lose your 2FA device. We have encouraged users to have backup codes so they can avoid too much pain should this scenario occur.
Duo has excellent support for third-party applications so we were able to implement it throughout our many disparate systems, on-premises, and cloud. I don't see any downsides, this is hands down the best 2-factor authentication app I have used.
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Score 9 out of 10
Vetted Review
Verified User
Review Source
Duo Security is our 2FA solution. We use it in several systems such as (remote access VPN, SSO, and more).
Duo offers several 2FA options including push, phone call, and text. Today, 2FA is a must for authentication, and with Duo you don't need any hardware tokens, just a mobile phone.
  • Online help is very useful for integrating new applications
  • The callback option allows for having 2FA functionality even in cases where employees don't want to install the app on their phone.
  • You can generate 2FA codes in advance if you know you won't have access to your phone.
  • The Duo app can also be used as an authenticator app.
  • We've had several cases of service issues, delays in push notifications, and even the software not working at all. In these cases, users were not able to authenticate. I expect 2FA vendors to have the highest SLA and stability, and I am aware problems can happen, but more than 1 issue/year is too many in my opinion.
  • We had some cases with Chinese mobile phones and the Duo app, where push notifications were not received.
Cloud-based MFA service is the most logical thing to do when companies transfer many services to the cloud. The onboarding process is very simple, and permissions can be delegated to help desk teams. We have employees all over the world, and we haven't had any geo locations issues. There is also no need to purchase the old fashioned hardware tokens that eventually get lost.
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Score 9 out of 10
Vetted Review
Verified User
Review Source
It is being used by DevOps staff to require multi-factor authentication(MFA) for logins to our Windows Servers. In addition to being a security measure that is a great practice to implement anyway, MFA is one of the items in the Payment Card Industry Data Security Standards (PCI-DSS).
  • Easy to implement, just an agent needs to be installed to link it to the company's Duo Security account.
  • Easy and seamless to use for every Windows log on.
  • Multiple ways to grant the additional verification (phone call, text/SMS, app notification).
  • We have not run into any shortcomings with Duo given our needs from the service.
Duo is great at filling the gap of Windows not supporting multi-factor authentication natively. It is easy to set up, and the MFA process is unobtrusive while still providing the additional level of security needed.
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Score 10 out of 10
Vetted Review
Verified User
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Duo used by every user in our company to provide stronger login security to their office computers, servers they access, the corporate portal, and a number of applications like Drupal.
  • Duo prevents someone who has hacked your username and password from gaining access to your account.
  • Duo supports landlines, cell phones, smartphones, tablets, smartwatches, and YuBiKeys.
  • When Duo was rolled out to over 2,000 staff, the number of questions received by our helpdesk was under 10.
  • Duo could advertise more as other 2FA solutions by Google and Microsoft get more ink, but suffer in actual use compared to Duo.
Duo is helpful for any company of any size who wishes to protect their staff's user accounts even if they get hacked. If you are a very small company (10 or less staff) there is a free version of Duo available, but of course, the management capabilities are not as great as the paid version.
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Score 9 out of 10
Vetted Review
Verified User
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We have implemented Duo Security for all our employee, internet-facing applications. Multi-factor authentication is a necessity in the current world. At the moment we have the ADFS integration running smoothly. Duo has been integrated into the VPN solution and on our enterprise password manager, all to great satisfaction of the admins and the users.
  • User acceptance is excellent through easy to use "approve" button
  • The Apple Watch app makes is easy at home to approve logins without having your phone in your hand
  • Syncing AD users means user provisioning is automatic
  • Price is relatively high
  • Apple Watch notification is noticeably slower than the Azure MFA equivalent. Still very useable, but slower
You really need MFA for your company! Support in many applications for Duo Security is excellent so if you have a lot of applications, Duo is the way to go. If you need basic MFA, like for Office 365, many times it already has built-in support for some form of MFA. Duo would be too pricey for such situations.
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Rob Rotundo profile photo
Score 9 out of 10
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Verified User
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We implemented Duo Security in our organization as a beta test to see if it was something our clients would be able to use. Our whole organization uses it. It adds another layer of security on top of all of the layers we already have and is a good solution for a business who is looking to tighten security.
  • Integrates well with many different platforms.
  • Works seamlessly with the Duo smart phone app.
  • Good support.
  • Can be tricky to setup initially.
It's well suited for an MSP business like ours where we have a lot of different applications which contain a lot of secure information, such as passwords. This just adds another layer of security on top of built-in security to ensure we maximize security on our and our client's data.
Read Rob Rotundo's full review
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Score 10 out of 10
Vetted Review
Verified User
Review Source
Anyone with remote access, which is most of the firm, has access to Dupo and needs it for two-factor authentication.
  • Easy authentication.
  • Easy to add/remove users.
  • Very fast and responsive when a push, call or PIN is needed.
  • No improvements to suggest at this time.
  • It works as expected.
It is well suited for when you need two-factor authentication when needing:

  • Remote access on a non-firm computer.
  • Remote access to the document management system.
  • Remote access to OWA/Citrix.
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Raymond Batista profile photo
June 27, 2018

MFA without hiccups

Score 10 out of 10
Vetted Review
Verified User
Review Source
I will say that Duo Security has made my life and my users' lives better. Not only it is a seamless product to use/implement at least for our Sonicwall SRA's, Office 365 and Carbon Black, but it works without hiccups. Pretty much, set it up and forget about it, and on top of that it gives you that simple but huge extra layer of security you need for your network in terms of multi-factor authentication (MFA).
  • MFA
  • Great job from account managers and support to help you assess your needs and implement the product
  • Great wiki tutorials on their site
  • I really can't think of any yet.
It worked just fine for our Sonicwall SRA setup, to integrate it with carbon black defense, and with Office 365. Also, the instructions to set up for end users make the process as seamless as it can get
Read Raymond Batista's full review
Jeff Boes profile photo
October 18, 2018

Duo - We Love It

Score 10 out of 10
Vetted Review
Verified User
Review Source
Duo Security is being used across our whole organization. It is very seamless and easy to use. It has addressed out need for 2 Factor Authentication in a way that doesn't impact our users.
  • Easy to install
  • Easy to use
  • Very reliable
  • Can't think of any
We have a number of remote and mobile users. This scenario is perfect for Duo. We have been able to roll out 2 Factor Authentication in a way that had virtually no push back. Users felt comfortable using Duo and really had no complaints.
Read Jeff Boes's full review
Kayla Gillespie profile photo
Score 9 out of 10
Vetted Review
Verified User
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Duo is used to provide secure access to our company's information via access to our cloud apps behind multi-factor authentication. It protects company emails.
  • Provides a robust form of multi-factor auth to protect sensitive data like emails and cloud-stored data.
  • Prevents phishers from gaining access to company emails and sending spam even if an employe happens to fall for a phishing scam.
  • Authentication is created by the user with minimal work/intervention from IT after the initial set up.
  • The mobile app could be improved. It is slow to load and the notifications sometimes don't appear requiring the app to be completely opened.
  • The remember device option sometimes re-triggers early, resulting in requiring re-authentication more often.
This is most useful if you are accessing sensitive information like a company email or personal info like addresses, phone numbers, etc.

This might not be necessary to implement for employees that do not have access to that information regardless as that would only impede them from doing their jobs by adding an extra step.
Read Kayla Gillespie's full review
Brett Gustafson profile photo
Score 9 out of 10
Vetted Review
Verified User
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We use it for our two factor authentication for externally facing or cloud based applications. We only deploy it for users that have these needs. Some of these services are Remote Desktop, OWA, Salesforce, ScreenConnect and the like.

It helps secure our organization from credential theft via brute force attacks, phishing, and the like. We love the end user experience. When they log in they don't need to pull out their phone, pull up an app or a text message with a code, and then enter it in. All they have to do is touch a push notification and then hit an approve button and they're logged in.
  • Very easy to setup
  • Integrates with many different services
  • A great end user experience
  • While it works with a lot of services, could work with more
It's best suited for environments where you have the services that Duo provides
Read Brett Gustafson's full review
Rushabh Kadchhud profile photo
June 19, 2018

Best 2FA software!

Score 10 out of 10
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Verified User
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Duo Security is used by our whole organization. It addresses core authentication issue and user traceability.
  • Ease of use and you can get 2FA seamlessly by just one tap on your smartphone
  • Works on Apple Watch too!
  • Control panel is super easy to use
  • Pricing should be revised for smaller companies
It is well suited for all sizes of organizations.
Read Rushabh Kadchhud's full review
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Score 9 out of 10
Vetted Review
Verified User
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Duo is used by our entire organization as a whole. We use SSO in our organization very strongly so having Duo as our 2-Factor provider gives us an extra layer of security for our teams and organization.
  • Ease of Use
  • Ease of Implementing
  • Analytics Duo gives on devices and user activity.
  • When a user loses or breaks their device it can sometimes be a headache even with their do-it-yourself portal.
  • 2 Factor Push and Calls have issues in lower developed areas such as the Africa and Philippines with their current carriers.
  • Limiting access per region or country would be nice.
Simple setup on the IT side and easily managed. Few quirks to work out but over all a fantastic product.
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Score 10 out of 10
Vetted Review
Verified User
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Duo allows our entire company to successfully access specific tools that require a two-step authentication. This helps protect our company from potential hacking attempts and ups security for sensitive information. It also makes it easy for users to complete two-step authentication and limits the time spent trying to complete a task like opening an email, hunting down a security code, or waiting on a text message to authenticate.
  • The mobile app is spectacular. Very straightforward, easy to use, and the push notifications on a locked screen save so much time when it comes to authenticating.
  • Adding the tools that need to be added is as simple as scanning a QR code, which makes it a lot less complicated than competitors
  • Allowing more applications to partner with the app, making it where it could handle ALL of your two step-authentication.
Any large company wanting to add an extra layer of security to specific tools. It's great for a tech company, but also easy enough to use for a company with non-technical users. While it will work for smaller companies, and would still be a great tool, I would think companies larger than 200 would benefit the most from the tool since they more than likely are using more tools that would integrate.
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Score 9 out of 10
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Reseller
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We use it for all our staff for secure authentication. Whether its email or SaaS applications we utilize Duo to make sure that we limit potential for unauthorized access.
  • Very simple
  • Flexible (swipe, call, or text) responses
  • Reliable. We have not experienced an outage of service in the 2 years we have been using it.
  • You cannot use same device across different organizations.
Well suited for anyone concerned about unauthorized access to systems and data. May be less suited for 1 or 2 person shops.
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Debbie Johnson profile photo
December 28, 2017

Duo - Easy User Adoption

Score 10 out of 10
Vetted Review
Verified User
Review Source
Duo Security is used for two factor authentication for outside connectivity to internal resources across our entire organization, including any third party vendor access for support services.Users use the Duo app on their iPhones. Support vendors use a key fob we purchased specifically for them. Two factor authentication obviously is much safer for external access.
  • User functionality is simple. Our users love the ability to use their iPhones for the authentication.
  • User access is quick. We have had no reports of sluggishness or timeout issues when logging in and no downtime reported for the functionality in the year that we've used the service.
  • Bypass option in Duo is easy to administer when you have to make an exception for a user to bypass the two factor authentication (for example someone lost their iPhone but needs to work remotely until the new phone arrives).
  • Some of the applications that Duo works with offer users the ability to send them a 'push' - which means their iPhone app pops up automatically for them to simply check and approve or not approve button to allow remote access. Users love this. I wish all applications would allow Duo to do this so it was consistent for users. It's even easier then having to enter the PIN code from the app.
  • We have found that the license count on the admin interface is sometimes wrong, counting devices instead of users - but we pay for licenses based on users - so it's sometimes difficult to track properly.
  • It would be nice that users didn't use Duo for 90 days or some period, they would fall off the active license use count. We have all of our users setup in case they need to work remotely, so we find we pay for more access licenses than we actually use in any given period. We have about 30% of our users that have never used it, but we continue to pay for the licenses as a business model decision - but some companies do offer 'active' license count pricing only.
We use it with our Cisco VPN, Citrix, and OWA. For vendors, such as a remote outsourced HelpDesk, we sent a key fob. It's worked great for everyone with everything we've setup so far. Their support has been helpful with the setup as well.
Read Debbie Johnson's full review
Craig Lockley profile photo
Score 9 out of 10
Vetted Review
Verified User
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Duo Security is used as a 2-factor authentication method when accessing a server locally or remotely via SSH. This is especially true with Linux based servers that contain mission critical functions or sensitive data. This enables the admin users to access the systems they need while keeping intruder users out. It also solved a very real issue around VPN users who now are required to have 2-factor authentication. You can build all the necessities to lock down your network from outside intrusion, but a simple mistake from an end user to accidentally write or share their credentials can defeat any and all efforts you or your team have made.

Duo Security is also very viable for specific use cases such as VPN Access, Administration Access to servers, working in conjunction with a RADIUS server, use of hardware tokens as well as mobile 2-factor text messages. The list of ready to use applications with easy setup is extensive and well documented.

The Duo Security authentication proxy has not been the easiest for integrating into our network however, once it was installed and working, everything just sort of fell into place.
  • Easy and ready to use solutions for popular systems such as Cisco, SonicWall, Windows services, OpenVPN, and some of the most popular password managers.
  • It provides hardware tokens and U2F devices if a mobile device isn't available. Hardware tokens can sometimes be confusing or very in depth to integrate where Duo Security can make this very easy.
  • Policy driven administrative control of the users and which devices they should use or applications to use. They can be defined on a system wide or application level.
  • They offer a great and in depth process and documentation around popular systems, but that may leave you feeling stranded when attempting to use with other devices not listed. For example, MikroTik routers are not officially supported nor was it easy to connect to our LDAP servers without an additional RADIUS Server on top of the DUO Security Proxy.
  • Adding in multiple devices per user is a great feature since not all users will have their phone with them or a Hardware Token with them. It was easy to setup and use but found it difficult to tie one application to one user with multiple devices which can be used to authenticate.
  • Cost of telephone messages are a bit expensive compared to other competitors.
If you use applications or servers already supported by DUO Security. Its a no brainer. If you have routers or security appliances, or even applications that aren't supported then further investigation into implementation viability should be completed. It's always best to do your research first, followed by a real time test implementation before following through with purchasing DUO Security. This is particularly true for VPN Access. For local site or remote system access (via SSH or other protocols), DUO Security is one of the best solutions out there.
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Scott Aldinger profile photo
Score 10 out of 10
Vetted Review
Verified User
Review Source
Duo is currently being used to to increase security for administrative systems, and those with sensitive information. It's used mostly, but not exclusively, within the internal IT staff. It's also being tested (and working well) as part of the login process with an F5 glb apm for our virtual desktop infrastructure.
  • Very fast response times.
  • Multiple verification methods.
  • Easy to recover accounts.
  • The call me verification, if going to a cell phone, is a vulnerability.
Seriously? Duo or any 2FA should be used anywhere you need to log into something. Passwords alone haven't been sufficient for some time now.
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Jason Conrad profile photo
Score 8 out of 10
Vetted Review
Verified User
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We used DUO across our organization as a dual factor authentication solution for all VPN and remote desktop logins. Intuitive User interface and Push Notifications gave us a safe and easy to use solution to ensuring safety and security of information of our employees, clients, and companies sensitive information.
  • Easy to use intuitive interface
  • Multiple client devices
  • Dual Factor Authentication
  • Although rare, Authentication loops or slow response can occur.
I would recommend using DUO Security as a dual factor authentication solution for small to midsize organizations when considering software for VPN and remote desktop capabilities.
Read Jason Conrad's full review
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December 12, 2017

DUO - Simple and Fast

Score 9 out of 10
Vetted Review
Verified User
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We use it for multi-factor authentication for our critical systems. It's used across the organization for both full time employees as well as contractors, and even in some cases, customers. It helps us mitigate potential compromise issues with user names and passwords, and adds an additional layer of security. Additionally, [there is a] pretty low impact to users and productivity.
  • It's very responsive/quick. The authentication prompt on your phone comes up within a second, and after authenticating (approving) access is granted almost immediately.
  • The user interface on the phone is straightforward and easy.
  • Installation isn't very complex, though we had a few minor issues.
  • Installation on the phone has run into a few issues, but nothing we couldn't fix by a re-install or a quick call to support.
  • More native application integrations would be good. Though they have quite a few today (SFDC, MSFT, etc...).
  • A bit easier to integrate into custom applications, though some of our apps are pretty old.
I can't think of an area where it wouldn't be well suited, except for automated or services related use cases. It's really simple to use once installed, and very quick. Also we have only had one outage in the past two years, which lasted about 75 minutes. We were able to bypass Duo Security for that time being.
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About Duo Security

Duo Security is a two-factor authentication system (2FA), acquired by Cisco in October 2018. DUO provides single sign-on (SSO) and endpoint visibility, as well as access controls and policy controlled adaptive authentication.

Duo Security Technical Details

Operating Systems: Unspecified
Mobile Application:No