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Fortinet FortiAuthenticator vs Microsoft Active Directory comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

Review summaries and opinions

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

ROI

Sentiment score
5.4
Fortinet FortiAuthenticator improved security and compliance, yet financial gains are hard to quantify with some citing reduced costs.
Sentiment score
4.4
Microsoft Active Directory enhances efficiency and access control, providing value through centralized management despite lacking direct ROI calculation.
It enhances security by ensuring only the right person can access systems, even if their login credentials are compromised.
The solution is really time-saving since I don't need to create users in each server or system manually, and user access control is streamlined.
 

Customer Service

Sentiment score
6.8
Fortinet FortiAuthenticator offers generally responsive support with some variance in effectiveness based on complexity and local availability.
Sentiment score
5.5
Microsoft Active Directory support is inconsistent, with varying response quality, reliance on online resources, and better service via premium options.
At times, some technical staff lack knowledge, which delays issue resolution.
Customer service and support are excellent.
Technical support from Fortinet deserves a rating of 10.
Support documents are available on the internet in every language.
If you purchase retail, the support will be more difficult because they will assess the priority or rating from the customer.
Sometimes support takes long to engage and resolve, extending over weeks or even months.
 

Scalability Issues

Sentiment score
7.7
Fortinet FortiAuthenticator offers scalable user capacity and integrates well, though minor manual adjustments may be needed.
Sentiment score
6.2
Microsoft Active Directory is scalable and integrates well, but faces challenges at larger scales, suggesting hybrid solutions.
The scalability of FortiAuthenticator is good, and I would rate it an eight on a scale of one to ten.
I find Fortinet FortiAuthenticator to be highly scalable, and I would rate it an eight out of ten for scalability.
Fortinet FortiAuthenticator should be sufficiently scalable.
Microsoft Active Directory scales effectively; I don't foresee any issues with that at all.
 

Stability Issues

Sentiment score
7.4
Fortinet FortiAuthenticator is generally stable, though hardware defects and syncing issues affect performance in high-volume environments.
Sentiment score
6.4
Microsoft Active Directory is praised for its stability and reliability, with minor issues not significantly affecting performance.
It remains stable even when the number of concurrent users increases.
If you meet the installation requirements from Microsoft, it will be very stable.
With multiple domain controllers, stability is ensured.
I've been working with Microsoft Active Directory for over 3 years, and we've had no problems.
 

Room For Improvement

Fortinet FortiAuthenticator needs improved usability, integration, support, affordability, customization, and stability for better user authentication efficiency.
Microsoft Active Directory needs improvements in usability, integration, security updates, synchronization, setup, reporting, support, scalability, and email group sync.
For example, authentication for wireless users expires after 24 hours, requiring re-authentication daily.
I recommend Fortinet make its images migratable between environments.
The technical support could be improved as some staff lacks the necessary knowledge to assist effectively.
Exporting and verifying group memberships require command line scripts, which isn't simple.
There are some features that need improvements in terms of ease of use and frequency of updates.
Sometimes, it can be overly complicated, and when you apply Group Policy in an Active Directory environment, sometimes those settings apply and sometimes they don't.
 

Setup Cost

Fortinet FortiAuthenticator is praised for its affordable, straightforward user-based pricing, especially compared to Cisco solutions.
Microsoft Active Directory pricing varies by region and model; Azure offers cost-effective solutions for large enterprises despite perceived expense.
Fortinet FortiAuthenticator is not overly expensive compared to other Fortinet subscriptions.
For the cloud solution in our region, the pricing of Microsoft Active Directory is very high.
I consider Microsoft Active Directory expensive because if you buy this thing bundled with the Windows Directory Server, you get five user licenses for about a thousand euros, or a little bit less than this.
The pricing, setup cost, and licensing with Microsoft Active Directory is straightforward; you just buy the server and then have to buy the user CALs.
 

Valuable Features

Fortinet FortiAuthenticator offers easy setup, cost-effectiveness, strong integration, detailed logging, and flexible two-factor authentication options.
Microsoft Active Directory simplifies management with integration, group policies, and scalable operations across on-premises and cloud environments.
The integration with FortiToken is outstanding, adding a layer of security for authentication.
We use multi-factor authentication for enhancing security.
The most valuable feature I find in FortiAuthenticator is web filtering.
To assess the impact of Microsoft Active Directory's centralized domain management on security protocols and access permissions, Microsoft Active Directory itself has constraints with security because when we have a solution such as SSO or Single Sign-On, which makes it easier for users to log in, some parts have security openings.
One valuable feature is the centralized creation of IDs.
I can control all the devices in my domain by just changing the group policies in one place.
 

Categories and Ranking

Fortinet FortiAuthenticator
Ranking in Single Sign-On (SSO)
6th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
62
Ranking in other categories
Authentication Systems (3rd), Identity Management (IM) (9th), Multi-Factor Authentication (MFA) (1st)
Microsoft Active Directory
Ranking in Single Sign-On (SSO)
8th
Average Rating
8.6
Reviews Sentiment
6.3
Number of Reviews
47
Ranking in other categories
Active Directory Management (5th)
 

Mindshare comparison

As of October 2025, in the Single Sign-On (SSO) category, the mindshare of Fortinet FortiAuthenticator is 5.6%, down from 8.2% compared to the previous year. The mindshare of Microsoft Active Directory is 3.2%, up from 2.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Single Sign-On (SSO) Market Share Distribution
ProductMarket Share (%)
Fortinet FortiAuthenticator5.6%
Microsoft Active Directory3.2%
Other91.2%
Single Sign-On (SSO)
 

Featured Reviews

Yonas Abebe - PeerSpot reviewer
Integration capabilities simplify authentication and migration challenges need addressing
The integration capabilities of Fortinet FortiAuthenticator are very interesting, as it can be integrated with third-party devices easily and is straightforward to configure. The integration with FortiToken is outstanding, adding a layer of security for authentication. In addition, it can be used by integrating with zero trust single access, enhancing overall security measures.
Eko Kurniawan - PeerSpot reviewer
Has simplified credential management and improved secure access control across departments
The features I find most useful in Microsoft Active Directory are especially for the Single Sign-On. This is very useful for users, particularly if they have plenty of applications, such as tablet applications. When they log in to their computer, the application will automatically log in with their credentials. They don't need to remember another user and password to log in to the application because it's already maintained with Microsoft Active Directory using Single Sign-On. To assess the impact of Microsoft Active Directory's centralized domain management on security protocols and access permissions, Microsoft Active Directory itself has constraints with security because when we have a solution such as SSO or Single Sign-On, which makes it easier for users to log in, some parts have security openings. When their computer is compromised with a threat, malware, or other cyber threats, it becomes easier to enter the application without login permission.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
10%
Government
7%
Manufacturing Company
7%
Financial Services Firm
13%
Manufacturing Company
11%
Computer Software Company
11%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise17
Large Enterprise10
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise7
Large Enterprise20
 

Questions from the Community

What is your experience regarding pricing and costs for Fortinet FortiAuthenticator?
Fortinet FortiAuthenticator is not overly expensive compared to other Fortinet subscriptions. However, it would be beneficial if the licensing allowed for more flexibility to cover additional users.
What needs improvement with Fortinet FortiAuthenticator?
The area for improvement in Fortinet FortiAuthenticator is its price.
What do you like most about Microsoft Active Directory?
The solution is easy to install and has good reliability.
What needs improvement with Microsoft Active Directory?
I think Microsoft Active Directory could be more intuitive. My impression of the integration of Microsoft Active Directory with third-party applications is that it can be made better. It's not the ...
What is your primary use case for Microsoft Active Directory?
My usual use case for Microsoft Active Directory is to share groups of authorization among many different applications. The other use case for Microsoft Active Directory is the authentication of us...
 

Also Known As

FortiAuthenticator
No data available
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Information Not Available
Find out what your peers are saying about Fortinet FortiAuthenticator vs. Microsoft Active Directory and other solutions. Updated: September 2025.
869,832 professionals have used our research since 2012.