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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

"My advice for other companies that are considering getting Cisco Duo is to try it, and you will be amazed at how easy and how productive this tool is."
"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."
"The feature of Cisco Duo that I appreciate most is the push notifications. They are great."
"Cisco Duo's integration is smooth and very quick."
"Cisco Duo's visibility into identity-based risks has improved our ability to manage security very well."
"The winning point for Cisco Duo over others is its simplicity; it is just a security solution in a box, and it integrates very easily."
"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."
"It's fast; the whole process takes less time compared to other tools we've used before, which is very helpful."
"The solution is simple to deploy, simple to use, and user-friendly."
"If you want a more efficient way to manage two-factor authentication for your users, or implement the unit as a cluster member role, the FortiAuthenticator can be incorporated very well into your environment."
"FortiAuthenticator is really good software that integrates very well with Fortinet products."
"The most valuable aspect of the solution is the security; it's great."
"In terms of benefits, the tool provides both cost savings and efficiency, but efficiency is more important for our customers."
"I am really impressed by the technical support because they were very helpful; once we logged our complaint, we received an answer from them in no time, and they quickly fixed our issue."
"It has simplified network management, reduced operational costs, and ensured seamless connectivity across all our sites."
"The current version is stable...Scalability-wise, it is a fine solution"
"Once we started adopting these products, we've seen the fraud losses go down considerably."
"It has reduced false positives greatly in our fraud detection ability."
"The most valuable feature is the stock tokens. That works the best for us."
"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."
"One of the most valuable features is the fraud detection capability with minimal friction in the customer experience."
"Risk Engine’s risk score, eFN, GeoIP, and device binding all coming together in the Policy Rules to decide when to escalate to MFA."
"The capability to manage your business policy related to security when required without vendor involvement."
"Ingestion of logs and raising alert space on those logs are the most valuable features."
 

Cons

"Regarding the Premier licensing, it is a little bit pricey, but it is in the market range with the competitors."
"Its management interface should also be improved. They should also improve its update period."
"We already have Active Directory enabled in our routers and switches. However, if we could do two-factor authentication, then it could go a long way since no one's getting into them unless you want them to."
"Cisco Duo is definitely not doing things that others are not doing, so there is no unique selling proposition."
"I think the prices of Cisco Duo are quite fair, but the main problem is that Microsoft Authenticator is built-in with M365, so everyone is switching to that and using it instead of Cisco Duo because it costs extra as a standalone product."
"Duo has some issues that we're trying to work through. For example, if I install it on a WordPress site and another admin needs to log in, they can't because Duo hasn't been set up for them. It doesn't appear that I can add permissions on a user-by-user basis. It's not obvious."
"I'm unsure how to disable the ping notification sound on my phone when using Cisco Duo. I don't know how to silence it."
"Integration between Duo Security and FTDs needs improvement. Integrating Next Generation Firewall safety with Duo Security currently requires a proxy agent between Active Directory and the appliance. It's an additional factor that we need to think about. It would be great to have direct integration with FTD so that we don't have to worry about middleware products. For the rest of the Cisco Secure solutions, the APIs need improvement."
"For improvement, Fortinet needs to ensure that they provide quick support to users...Fortinet sometimes needs to respond to users facing issues within an hour."
"The customization capability of Fortinet FortiAuthenticator is not very flexible."
"The technical support could be improved as some staff lacks the necessary knowledge to assist effectively."
"I don't have any issues with this solution, but it may need a better, more user-friendly interface or better design of the platform."
"I think the tool could provide this solution on the cloud. It's currently an on-premises solution. A cloud-based version could make setup, installation, and management easier. With on-premises, you must pay capital expenses (CapEx) upfront. However, if the solution was cloud-based, it would be operational expenses (OpEx), which is often easier to manage. You can pay monthly instead of paying the total cost at once. In my opinion, OpEx is more easily manageable than CapEx."
"There are some protocols, such as SHA and SHA-2, that are not supported."
"FortiAuthenticator should integrate with other applications."
"We've had some issues with integration."
"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."
"The product is basically unusable. We need better ease of use; it's overly complicated."
"It's an okay solution. It's just old technology and it's time to move on."
"Reporting modules is one of the major areas that can be improved further."
"I would like to see a more adaptive type of solution, something that we could use on our web pages..."
"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."
"It has taken years to implement."
"RSA Adaptive Authentication lacks a mechanism to verify the identity of a new user in the Enrollment event workflow."
 

Pricing and Cost Advice

"During testing we are allowed a certain number of licenses for free."
"My experience with pricing, setup costs, and licensing has been good, with no issues. I am pleased that the prices remained stable after Cisco acquired the solution."
"It falls in line with everything else."
"I haven't seen it in a while, but it's at par with everything else licensing-wise."
"The pricing was a lot more than what we were paying for our previous solution."
"Duo Security's pricing is good, fair, and very comparable to today's market."
"From a business perspective, it is a little bit costly. The licensing is on a per-user basis."
"Our licensing fee is currently on an annual basis."
"I rate the price of Fortinet FortiAuthenticator a three out of five."
"The licensing structure is cost-effective for us compared to some of the other solutions that have recurring monthly costs."
"We pay for licensing on a yearly basis."
"When we buy the Fortinet FortiAuthenticator device there is a comparison between price and security."
"FAC is an affordable solution for Middle Range (200E/400E) and also needs a package of mobility agents (2,000) perpetual."
"I would start off with a VM including the base license and scale according to the number of users you need to authenticate."
"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."
"The product has affordable pricing compared to other vendors."
"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%
Comms Service Provider
9%
Manufacturing Company
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.
921,749 professionals have used our research since 2012.