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Fortinet FortiSandbox vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 1, 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

Fortinet FortiSandbox
Ranking in Advanced Threat Protection (ATP)
4th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
38
Ranking in other categories
Threat Deception Platforms (7th)
Microsoft Defender for Offi...
Ranking in Advanced Threat Protection (ATP)
2nd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
Email Archiving (1st), Email Security (1st), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of October 2025, in the Advanced Threat Protection (ATP) category, the mindshare of Fortinet FortiSandbox is 8.7%, down from 9.9% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 7.7%, down from 12.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Advanced Threat Protection (ATP) Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Office 3657.7%
Fortinet FortiSandbox8.7%
Other83.6%
Advanced Threat Protection (ATP)
 

Featured Reviews

Abdelhamid Saber - PeerSpot reviewer
Enhanced network security with adaptable integration and really good support
We use FortiSandbox for scanning files and images that pass through our networks. It integrates with different devices, such as five adapters and other Fortinet devices It is time-saving and more secure. It saves us from a lot of antivirus and anti-malware issues. The adapter is beneficial as it…
Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.

Quotes from Members

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

Pros

"What I find most valuable, is that it is easy to use."
"Overall, it works fine. Its interface is also fine."
"The scanner office document as well as PDF are useful. The most valuable thing is that you can emulate different operating systems without having the danger of getting something infected. It emulates several operating systems, and as a result, you either get the file or you don't get the file."
"Fortinet FortiSandbox is scalable."
"FortiSandbox analyzes the behavior of processes in a sandbox environment, which is useful for threat hunting. The solution has an excellent standard configuration, and you can prioritize the types of files of VMs you want to analyze. It also integrates seamlessly with other Fortinet solutions, like FortiGate, FortiMail, and FortiEMS."
"The product is great. It can be deployed on the cloud or on-premises."
"The adapter is beneficial as it allows integration with various devices, not just Fortinet."
"The solution is very good because it catches a lot of threats in emails."
"The email protection is excellent, especially in terms of anti-phishing policies."
"It gives us visibility into threats and, for endpoints, it helps us to prioritize threats. We used to have a lack of visibility, but now our time to detect and respond has decreased."
"Microsoft Defender for Office 365 is a stable solution."
"The most valuable feature is the integration. It's a single console, so we don't have to switch around between multiple products. Another valuable feature is the ease of operations and maintenance."
"The two main features that prove most beneficial for us are URL scanning and attachment scanning."
"The product is not resource-intensive."
"The initial setup was easy."
"There are several features that I consider valuable."
 

Cons

"I would like to have machine learning added to the solution in a future release."
"The initial setup is not too complex but could be easier."
"If you were to compare prices between vendors and manufacturers, you would see that the lowest equipment in the Sandbox line is quite expensive for a new customer."
"When you reach the maximum capacity, you cannot upgrade the solution because its hardware is very expensive."
"The initial setup of Fortinet FortiSandbox is complex. You cannot only deploy Fortinet FortiSandbox without deploying the stack of Fortinet solutions. The implementation and integration are challenging tasks with the device and placement in the network. We needed to do POC and offloading testing."
"Something that needs to improve, is the end-point protection."
"Most people are confused about how to use the right integration of the right Fortinet product."
"Fortinet FortiSandbox should improve its performance and security accuracy to keep competitive with other solutions, such as IBM."
"Specifically, within Microsoft Defender for Office 365, I want it to improve the DLP capabilities."
"We still see many false positives from time to time with Microsoft Defender for Office 365, so it would be good if we can reduce those false positives and provide better workflows for our end users, as sometimes they may not know what to do when they encounter a false positive."
"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."
"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."
"Microsoft needs to broaden its global support presence by establishing teams of subject-matter experts in all regions."
"They can improve their security in a way where a customer can know if all their attachments are safe or not to open through a report. The solution does its job perfectly, but it never reports to the customer whether those attachments have been stopped before or not."
"Microsoft Defender for Office 365 must improve the overall management style, including the GUI. It also needs to change the filters so that it is easy to whitelist and blacklist data."
"In the areas of improvement for Microsoft Defender for Office 365, the console is the biggest challenge for me."
 

Pricing and Cost Advice

"FortiSandbox is a subscription that can be purchased from Fortinet directly. Only using FortiSandbox as features purchased as a subscription in the cloud."
"Fortinet is more reasonable than Palo Alto."
"The solution is unavailable at a lower cost and can be difficult to deploy."
"The solution is not expensive at all."
"The price of Fortinet FortiSandbox is not expensive."
"There is a license to use this solution."
"Fortinet FortiSandbox is a nominally priced product, so I would not say that it is a very cheap tool."
"The price of Fortinet FortiSandbox is expensive."
"I was working in the government and it was too expensive for us to use our Microsoft products."
"The product is very expensive."
"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"The product is expensive."
"The pricing has become expensive."
"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"From the pricing point of view, like any other product in the market, there is scope for negotiation."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Government
10%
Financial Services Firm
9%
Comms Service Provider
8%
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise13
Large Enterprise9
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise8
Large Enterprise27
 

Questions from the Community

What do you like most about Fortinet FortiSandbox?
The real-time analysis capability of FortiSandbox is beneficial for email analysis.
What is your experience regarding pricing and costs for Fortinet FortiSandbox?
I think it's affordable. For the six to seven months of usage, the cost has been reasonable.
What needs improvement with Fortinet FortiSandbox?
We sometimes face a delay in email scanning due to not having multiple virtual machines. Improvements could be made in dynamic scanning, scanning all email components such as URLs and attachments, ...
What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the indi...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
I think that Microsoft Defender for Office 365 could be improved if it could use VirusTotal to compare the programs or anything that I download. VirusTotal helps to identify viruses, malware, troja...
 

Also Known As

FortiSandbox
MS Defender for Office 365
 

Overview

 

Sample Customers

Lush, Barnabas Health, Options, Riverside Healthcare, Hillsbourough County Schools, Columbia Public Schools, Schiller AG
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Fortinet FortiSandbox vs. Microsoft Defender for Office 365 and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.