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Fortinet FortiAuthenticator vs Secret Double Octopus comparison

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Comparison Buyer's Guide

Executive Summary

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

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)
Secret Double Octopus
Ranking in Authentication Systems
36th
Average Rating
7.0
Number of Reviews
1
Ranking in other categories
Passwordless Authentication (9th)
 

Mindshare comparison

As of November 2026, in the Authentication Systems category, the mindshare of Fortinet FortiAuthenticator is 3.1%, down from 6.4% compared to the previous year. The mindshare of Secret Double Octopus is 0.7%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Authentication Systems Mindshare Distribution
ProductMindshare (%)
Fortinet FortiAuthenticator3.1%
Secret Double Octopus0.7%
Other96.2%
Authentication Systems
 

Featured Reviews

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.
Gaurav Gaurav - PeerSpot reviewer
Architect at a tech services company with 10,001+ employees
A solution with good capabilities across a wide range of platforms that comes with a useful mobile application, but upgrades cause issues
We have noticed that patches and upgrades cause issues with how the application functions, due to the lack of stability of the product. However, we would recommend the solution because it has good capabilities, across a wide range of platforms, and the mobile application allows for use via Bluetooth, so users don't have to be connected to the internet. I would rate this solution a seven out of ten.

Quotes from Members

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

Pros

"The initial setup of Fortinet FortiAuthenticator is easy."
"The solution is very easy to manage."
"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 most valuable feature is the OTP on the mobile phone."
"The product enables SSO."
"The ease of use is really nice. Using Authenticator, I've been able to actually work better on my authentication due to the fact that I have a single fabric to authenticate control from my firewall and on my access points. Authentication takes place from this area."
"Customer service and support are excellent."
"I like the self-registration capabilities."
"This solution has a mobile application, which comes with multi-factor authentication; allowing for more flexible usage, without having to sacrifice system security."
 

Cons

"It does the job I paid for, but the graphical interface could be improved."
"Initially, we deployed Fortinet FortiAuthenticator on VMware and faced challenges when migrating to an OpenStack environment, which required reconfiguration. I recommend Fortinet make its images migratable between environments."
"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 solution's command line interface could be improved to provide better support for low-level debugging and advanced configurations."
"The GUI has some shortcomings and can be made better. The GUI is not great."
"I have had stability issues with FortiAuthenticator."
"The GUI is not fancy enough and some of the settings are difficult to access."
"The product suffers from frequent disturbances in service, that have impacted our end users when we deploy software updates."
 

Pricing and Cost Advice

"It costs more to license the high-availability option."
"The product could be more competitively priced."
"The licensing structure is cost-effective for us compared to some of the other solutions that have recurring monthly costs."
"The platform provides a user-based pricing model rather than a subscription pricing model."
"I price of the solution is expensive."
"The solution is not very expensive."
"You can pay as you go with them. You purchase a base license and add to it as needed."
"I rate the product price as two or three on a one-to-ten scale, where one is expensive, and ten is cheap."
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
Comms Service Provider
11%
Outsourcing Company
10%
Construction Company
8%
Manufacturing Company
17%
Financial Services Firm
13%
Comms Service Provider
12%
Educational Organization
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise11
No data available
 

Questions from the Community

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 available in the market. Overall, Fortinet FortiAuthenticator is an inexpensive sol...
What needs improvement with Fortinet FortiAuthenticator?
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 an...
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 for accessing and unlocking devices. However, Fortinet FortiAuthenticator was limi...
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Also Known As

FortiAuthenticator
Octopus Authenticator
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
United Technologies (UTC), American Family Association, ASL Airlines France, BNP Paribas, A Fortune 50 Bank, Bingham County Idaho, Britannia Financial Services, Carolina Behavioral Health Alliance LLC, European Commission, County of Midland Michigan, JRM Construction Management, Greer Commission of Public Works, Poste Italiane, Kennedy Wilson Europe, Key Mechanical, Marker Therapeutics Inc, Mediawan, Ministero Dell'interno, FairPrice, NTUC Health, Mercatus, TBC, Techni-Photo, Tinsa Group, Yates Law, Weil, Gotshal & Manges LLP, Z-Medica Corporation, A Member of the 5 largest US law firms.
Find out what your peers are saying about Microsoft, Cisco, Okta and others in Authentication Systems. Updated: October 2026.
920,769 professionals have used our research since 2012.