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Fortinet FortiAuthenticator vs RSA Adaptive Authentication comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Aug 11, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Cisco Duo
Sponsored
Ranking in Authentication Systems
2nd
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
176
Ranking in other categories
Single Sign-On (SSO) (5th), Access Management (5th), ZTNA as a Service (2nd), Cisco Security Portfolio (1st), Multi-Factor Authentication (MFA) (1st), AI Data Analysis (7th)
Fortinet FortiAuthenticator
Ranking in Authentication Systems
5th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
65
Ranking in other categories
Single Sign-On (SSO) (10th), Identity Management (IM) (15th), Multi-Factor Authentication (MFA) (2nd)
RSA Adaptive Authentication
Ranking in Authentication Systems
24th
Average Rating
6.8
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Authentication Systems category, the mindshare of Cisco Duo is 3.7%, down from 7.0% compared to the previous year. The mindshare of Fortinet FortiAuthenticator is 3.1%, down from 6.4% compared to the previous year. The mindshare of RSA Adaptive Authentication is 1.4%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Authentication Systems Mindshare Distribution
ProductMindshare (%)
Cisco Duo3.7%
Fortinet FortiAuthenticator3.1%
RSA Adaptive Authentication1.4%
Other91.8%
Authentication Systems
 

Featured Reviews

Charles Slaustas - PeerSpot reviewer
Information Technology Contractor at Insight global
Supports seamless authentication for users across multiple organizations and personal portals
The features I use in Cisco Duo include Duo Pushes to confirm my identity to the device, and eventually as MFA security was increased, I actually had to use exchange passcodes. Sometimes, I have to go into the site and get into Cisco Duo to retrieve the passcode, and many of them have been two-factor, where the sites send a passcode that I have to enter into Cisco Duo. It has been more of the latter. I have not seen issues with lagging or crashing on Cisco Duo's end; it was usually on the client end, often because someone set up a bad upgrade or there were connection issues with the Cisco Duo cloud through the administrative site.
reviewer2848395 - PeerSpot reviewer
Technical Business Development Manager at a outsourcing company with 501-1,000 employees
Multi-factor security has improved device protection but still needs broader application coverage
Fortinet FortiAuthenticator could be improved in its cost structure. Although it is not expensive, other solutions offer more value for less money. Cisco Duo provides better value in this regard and connects to web applications much more easily, scaling effectively in that sense. While I have never used Cisco Duo to secure other devices in IoT environments, I know Cisco Duo is capable of doing so, whereas Fortinet FortiAuthenticator cannot. Additionally, Cisco Duo is also cheaper. These are the main reasons why we switched away from Fortinet FortiAuthenticator, as it was very limited compared to other solutions available. Fortinet FortiAuthenticator was primarily missing the ability to scale to web applications.
Directorc4e7 - PeerSpot reviewer
Director of Cyber Security at a financial services firm with 1,001-5,000 employees
We need better ease of use; the product is overly complicated
There are many use cases that we have defined based on our business needs Ingestion of logs and raising alert space on those logs are the most valuable features. The product is basically unusable. We need better ease of use; it's overly complicated. It has taken years to implement. We used RSA…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Cisco Duo is very easy to deploy and the documentation is very thorough, which makes deployment straightforward."
"The solution is easy to use."
"We get fewer threats to remediate due to the two-factor authentication, which does not allow as many threats through."
"I appreciate the secured push feature of Cisco Duo, which requires you to choose a number, because it enhances the security of your users, especially when combined with geolocation for a Verified Push, benefiting my company and our customers by making logins much more secure."
"The features of Cisco Duo have benefited our organization in terms of security level because before, it was not secure—anybody could get your password and log in—however, with that second layer of defense, it helps us and helps our community."
"Cisco Duo benefits my organization by making it easy for me to reach out to customers using Cisco Duo so they can integrate on my platform using their credentials."
"Once you break that curve, it gives end users a sense of security where they know that if they're trying to sign on to Office 365 or some other application, they need to authenticate with Duo to make sure that they have the multi-factor authentication."
"Cisco Duo has improved my operational efficiency and reduced costs in areas such as authentication, IT support, and security operations significantly."
"FortiAuthenticator is a very good solution. It is all jury-based. FortiAuthenticator is very easy for anyone to understand how it works and be able to take action."
"The initial setup is so easy and there is no problem in the implementation."
"The solution is stable; I installed it two years ago, and we rarely check the internet for changes because it's really stable and we don't have problems."
"We have not had issues with Fortinet FortiAuthenticator. It is stable."
"FortiAuthenticator has helped a lot of our customers in the way that they do the business when they onboard their clients to the data center."
"The most valuable aspect of the solution is the security; it's great."
"FortiCare can provide prompt replies."
"We switched to FortiAuthenticator because it integrates with our Fortinet products."
"The capability to manage your business policy related to security when required without vendor involvement."
"It has reduced false positives greatly in our fraud detection ability."
"One of the most valuable features is the fraud detection capability with minimal friction in the customer experience."
"The most valuable feature is the stock tokens. That works the best for us."
"Ingestion of logs and raising alert space on those logs are the most valuable features."
"Our customer are seeing value from the product, as they experience cost reductions. They can stop fraud from their customers, then their customers can have a better experience from their services."
"Once we started adopting these products, we've seen the fraud losses go down considerably."
"Risk Engine’s risk score, eFN, GeoIP, and device binding all coming together in the Policy Rules to decide when to escalate to MFA."
 

Cons

"If I could improve Cisco Duo, I would suggest providing some notification back that the Cisco Duo system was not able to reach the remote device, because I was left in a situation where I did not know if it was actually my cell phone or something was wrong with Cisco Duo."
"Cisco Duo is a really good product and I am very happy with it, but sometimes we have to authenticate multiple times, which may be part of our administration."
"More automation and device insights would be helpful in achieving a seamless single pane of glass. Having the additional capability to streamline processes would also make things better."
"I think Cisco Duo could be improved by including email authentication, as there is currently only SMS, SMS push, and code generation, but having email authentication could be beneficial when you don't have a phone."
"I think Cisco Duo can be improved. I found the onboarding was very difficult, even for engineers who have been using similar solutions before."
"Its management interface should also be improved. They should also improve its update period."
"Improving Cisco Duo might involve alerting us about telephony credits when people receive texts. We hit zero at one point, and we were running around in circles without any idea until I discovered it. That's my only complaint."
"We had some trouble with the password reset function."
"There is a room for improvement. The log is a bit difficult to access, and searching the log codes is also a bit difficult. So it would be much better if, when we open a log, it could provide detailed information about errors, reasons for failure, and such."
"Improvements in the product could start from the dashboard, overall customization, and configuration."
"The one thing they used to include was the SMS gateway from the ISP; Fortinet used to sell that but they don't anymore and I think it would be helpful for end-users if they brought it back."
"I think FortiAuthenticator is more expensive than other products like Cisco Duo."
"The product must provide 2FA for applications."
"The user interface and clustering are areas with shortcomings that need improvement."
"We would like to see Linux-based operating systems be able to integrate with FortiAuthenticator to get two-factor authentication running on them. as well. This is a shortcoming that I have faced a few times already."
"For scalability, you need to size FortiAuthenticator properly. It's not 100%, maybe 80% on the scalable side."
"It has taken years to implement."
"The product is basically unusable. We need better ease of use; it's overly complicated."
"Reporting modules is one of the major areas that can be improved further."
"Better filters when searching for events. The current features for current filters when searching fraud events are not very comprehensive. You can only filter by certain fields in the transaction."
"I think I would like to see them use more of our data, and give us more ability to control or configure how the protection patterns work for a specific business, and also provide more transparency into the methodology."
"RSA Adaptive Authentication lacks a mechanism to verify the identity of a new user in the Enrollment event workflow."
"I would like to see a more adaptive type of solution, something that we could use on our web pages..."
"It's an okay solution. It's just old technology and it's time to move on."
 

Pricing and Cost Advice

"You pay per user when using this solution and the pricing is fair."
"It has a fair pricing model. I know they have different tiers, but it would be nice to have different types of licenses for certain groups of users in our organization. That way, we wouldn't have to lump everybody into one group. That would be also one complaint."
"The pricing was a lot more than what we were paying for our previous solution."
"Price-wise, the solution has been very, very reasonable...Licensing is the last thing I think about Duo Security because it's so easy, and I had no problems with it."
"I rate the product pricing a seven out of ten."
"The licensing is very good because it does not cost a lot of money. It's affordable for all-sized customers, including enterprises. There is an additional cost for premium support."
"The product’s pricing is reasonable."
"Cisco has the most expensive products because market leaders tend to charge a lot."
"I rate the product price as two or three on a one-to-ten scale, where one is expensive, and ten is cheap."
"I rate the price of Fortinet FortiAuthenticator a three out of five."
"The product could be more competitively priced."
"Between paying them to help with the configuration, the box itself, and the support, it came to like $12,500, including a three-year service agreement."
"You can pay as you go with them. You purchase a base license and add to it as needed."
"It is usually cheap. Without a license, you can use some basic features. You can buy a 20-year license and implement the solution once."
"The platform provides a user-based pricing model rather than a subscription pricing model."
"We pay for licensing on a yearly basis."
"Customers need to deploy the solution in a very expensive infrastructure. RSA should should think about a less expensive infrastructure for customers because the solution costs around $100,000, and the infrastructure needed to support that solution may be even more expensive than that price."
"The pricing is $50 per head, yearly."
"You may need to opt for second best if funding is low and the number of users is huge. However, the pricing is able to be negotiated if your user figures are huge."
"Keep the proxy service layer on premises. That consumes SaaS security services on the back-end."
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Top Industries

By visitors reading reviews
Outsourcing Company
12%
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
9%
Manufacturing Company
13%
Comms Service Provider
11%
Outsourcing Company
10%
Construction Company
8%
Financial Services Firm
23%
Construction Company
15%
Outsourcing Company
11%
Healthcare Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business66
Midsize Enterprise29
Large Enterprise93
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise11
By reviewers
Company SizeCount
Small Business1
Midsize Enterprise1
Large Enterprise6
 

Questions from the Community

How does Duo Security compare with Microsoft Authenticator?
We switched to Duo Security for identity verification. We’d been using a competitor but got the chance to evaluate Du...
What is your experience regarding pricing and costs for Duo Security?
Regarding the pricing, what actually happened was that we got the product purchased through our HQ, so the costing as...
What needs improvement with Duo Security?
I do not have a straight answer for how Cisco Duo can be improved at this time. With the implementation that we are g...
What is your experience regarding pricing and costs for Fortinet FortiAuthenticator?
My experience with Fortinet FortiAuthenticator's pricing found the pricing to be good. There are better solutions...
What needs improvement with Fortinet FortiAuthenticator?
Fortinet FortiAuthenticator could be improved in its cost structure. Although it is not expensive, other solutions of...
What is your primary use case for Fortinet FortiAuthenticator?
Fortinet FortiAuthenticator was implemented as a multi-factor authentication solution to serve as a second barrier fo...
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Also Known As

Duo Security
FortiAuthenticator
No data available
 

Overview

 

Sample Customers

Information Not Available
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
ADP, Ameritas, Partners Healthcare
Find out what your peers are saying about Fortinet FortiAuthenticator vs. RSA Adaptive Authentication and other solutions. Updated: November 2026.
921,665 professionals have used our research since 2012.