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ESET Cloud Apps Protection vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 3, 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

ESET Cloud Apps Protection
Ranking in Email Security
28th
Average Rating
9.6
Reviews Sentiment
7.4
Number of Reviews
2
Ranking in other categories
Vulnerability Management (39th), Patch Management (22nd)
Microsoft Defender for Offi...
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of May 2025, in the Email Security category, the mindshare of ESET Cloud Apps Protection is 0.4%, up from 0.4% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 12.9%, down from 18.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

LA
Great protection, good privacy, and helpful support
The only thing I would like is a way to open the email that is going to quarantine. Based on the level of security, they cannot open the email to check the message. Even for the administrator, you have to create a security copy to be sent, which will lock the log support. It's not easy for an admin to check and decide if the email is good or not. That is the only thing that I'm seeing could be improved. Basically, ESET doesn't have the ability to let the administrator release an email showing the message on the email. It's not possible. If you want to have an email review, you have to select an option to send a copy. In the way that they designed the system, for security, they are not letting anyone even have the admin privileges to make this happen. Privacy is at a really high level.
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

"We are close to having 99% or 98% detection."
"The most valuable features are the precision of detection and the level of customization of the policy."
"The two main features that prove most beneficial for us are URL scanning and attachment scanning."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"Microsoft Defender for Office 365 facilitates efficient management and updates through the cloud. We do not have to worry about incompatibilities. It just works."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"At the moment we are satisfied with this product. It's a stable, scalable, and resilient solution for us."
"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."
"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."
"The product is not resource-intensive."
 

Cons

"The specific domain file for Apache needs to be well-defined."
"It's not easy for an admin to check and decide if the email is good or not."
"The XDR dashboard has room for improvement."
"Configuration requires going to a lot of places rather than just accessing one tab."
"They have moved features from one console to another. Things have been moved around in the interface and it takes me time to find where certain features are."
"The pre-sales cost calculations could be more transparent."
"I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost."
"There is room for improvement in terms of reporting."
"One area for improvement is support, in terms of being able to reach them and, especially, technical support for configuration."
"In some situations, it has not been able to pick impersonated emails having no attachments. Technical support definitely has a scope for improvement."
 

Pricing and Cost Advice

"The solution provides affordable pricing for medium sized industries."
"The product is expensive."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"The license is expensive because the cost is based on the number of users."
"I was working in the government and it was too expensive for us to use our Microsoft products."
"The pricing has become expensive."
"The product is very expensive."
"The pricing is normal. Considering its popularity, it's not overpriced."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
13%
Media Company
8%
Consumer Goods Company
6%
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about ESET Mail Security?
The most valuable features are the precision of detection and the level of customization of the policy.
What is your experience regarding pricing and costs for ESET Mail Security?
The solution provides affordable pricing for medium sized industries.
What needs improvement with ESET Mail Security?
The specific domain file for Apache needs to be well-defined.
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?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published. It's essential to enhan...
 

Also Known As

ESET Mail Security
MS Defender for Office 365
 

Overview

 

Sample Customers

Information Not Available
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about ESET Cloud Apps Protection vs. Microsoft Defender for Office 365 and other solutions. Updated: April 2025.
851,823 professionals have used our research since 2012.