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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

"The two-factor authentication is valuable because that is the use case for which we are using it."
"From the front end, it's very fast and it hasn't missed a beat, so to say."
"I lead an IT organization that has a significant amount of technical debt, and we're not in a zero-trust architecture yet. I'm pushing in that direction. Duo helps me considerably with my identity in an environment where I don't have zero trust. It's helping me bridge the gap until I can build a zero trust architecture."
"Duo Security improved my organization by helping us secure all access points within the company infrastructure."
"The single pane of glass management is very important and it is part of the reason we went with Duo, and anything we can do to save time for our administrators, help desk staff, and engineers, is valuable to us."
"The most valuable feature is the ability for users to connect securely to the office using the VPN."
"Cisco Duo has improved my operational efficiency and reduced costs in areas such as authentication, IT support, and security operations, as the ability to use App Push eliminated the need for text messages and additional costs for messaging, also lowering IT support costs because of the simplicity for the end-user experience."
"The experience of deploying Cisco Duo is great; it is fast and not too complex in my opinion, as you can integrate basically anything into Duo, so I would say the experience is overall very great as an administrator."
"We have not had issues with Fortinet FortiAuthenticator. It is stable."
"Fortinet FortiAuthenticator has improved our organization because we are able to can create identity-based policies, for example, who are you and where are you, and we are shifting from the IP-based to the identity-based."
"The most valuable feature of the solution is RADIUS service and the social network integration feature."
"This is a cost effective and flexible solution."
"The initial setup of Fortinet FortiAuthenticator was straightforward, working effectively out of the box."
"The response from Fortinet is very fast."
"We have a perpetual license for 2FA."
"We switched to FortiAuthenticator because it integrates with our Fortinet products."
"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."
"It has reduced false positives greatly in our fraud detection ability."
"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."
"Ingestion of logs and raising alert space on those logs are the most valuable features."
"The most valuable feature is the stock tokens. That works the best for us."
"One of the most valuable features is the fraud detection capability with minimal friction in the customer experience."
"The capability to manage your business policy related to security when required without vendor involvement."
 

Cons

"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."
"It could be a little bit more intuitive when it comes to the sign-up process. I know they send out an email, but sometimes our users get a little confused. It could be an end-user problem, but Cisco could work on that a little."
"In my opinion, Cisco Duo could improve with better integration, particularly with Entra ID, as many organizations use Microsoft products."
"Reducing or eliminating the "telephony credits" system used by Duo would be great."
"Cisco Duo did not help reduce the cost of the overall authentication method that we have in our company; instead, it increased, obviously."
"Duo Security should better organize its tile feature to organize applications better."
"It is not easy to maintain network connectivity."
"I believe Cisco Duo needs to be improved on the delay process because there is a delay when we send a Duo Push or when we are signing into any applications."
"I think FortiAuthenticator is more expensive than other products like Cisco Duo."
"The interface is a bit misleading in areas."
"I would like to see more ways to authenticate, such as adding facial recognition to the two-factor, where you log into your phone or another device."
"We have issues with HA (high availability). These should be addressed in future releases."
"FortiAuthenticator should integrate with other applications."
"The area for improvement in Fortinet FortiAuthenticator is its price."
"These are the main reasons why we switched away from Fortinet FortiAuthenticator, as it was very limited compared to other solutions available."
"There are some protocols, such as SHA and SHA-2, that are not supported."
"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..."
"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."
"It has taken years to implement."
"It's an okay solution. It's just old technology and it's time to move on."
"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."
"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."
 

Pricing and Cost Advice

"From a business perspective, it is a little bit costly. The licensing is on a per-user basis."
"Cisco has the most expensive products because market leaders tend to charge a lot."
"Price wise, it's not cheap, but it's not expensive at all either. It's in the middle."
"It falls in line with everything else."
"The product’s pricing is reasonable."
"I believe the licensing model is excellent as it offers flexibility to our customers, allowing them to adopt a crawl, walk, or run approach."
"I only need the solution for IT staff, which makes it relatively cheap. If I deployed it for the whole company, it would be costly, so it depends on the number of users. Duo Security is affordable compared to other products in the segment."
"I am not aware of the pricing. There are two departments, and I don't have any information about them."
"We pay for licensing on a yearly basis."
"The product could be more competitively priced."
"On a scale of one to ten, where one is a high price and ten is a low price, I rate the pricing a seven."
"I rate its pricing a three to five out of ten."
"The price seems okay. It's not that expensive compared to other authenticators."
"It's not expensive."
"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 customers need to pay for licenses, and some pay on a yearly basis while others pay on a three-yearly or five-yearly basis. Also, it is not an expensive solution."
"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."
"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."
"The pricing is $50 per head, yearly."
"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.
921,714 professionals have used our research since 2012.