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Abnormal Security vs Microsoft Exchange Online Protection (EOP) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 8, 2026

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

Abnormal Security
Ranking in Email Security
12th
Average Rating
9.4
Reviews Sentiment
7.5
Number of Reviews
11
Ranking in other categories
Secure Email Gateway (SEG) (6th)
Microsoft Exchange Online P...
Ranking in Email Security
10th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (14th)
 

Mindshare comparison

As of November 2026, in the Email Security category, the mindshare of Abnormal Security is 3.2%, down from 6.2% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 3.0%, down from 4.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online Protection (EOP)3.0%
Abnormal Security3.2%
Other93.8%
Email Security
 

Featured Reviews

ChrisBrown5 - PeerSpot reviewer
Manager, Information Technology Technical Services at a wholesaler/distributor with 5,001-10,000 employees
Automated threat detection that protects against corruption with minimal intervention
Abnormal Security is valuable because it features an automated scoring tool that doesn't require much intervention from our team. It enhances threat detection capabilities by making the process automated and is easy to scale to our entire environment. Additionally, it protects us from being business email compromised, which is invaluable for maintaining our security.
NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.

Quotes from Members

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

Pros

"What I like about Abnormal Security is that it notifies me if any of my partners or suppliers are experiencing a security breach by analyzing their database and identifying potential cyber threats."
"It does some really cool stuff that other tools aren't doing. We found it to be really effective, and the AI/ML functionality is really what differentiates them."
"One of the things that I love about them is that the setup and installation are super easy. All you do is give them access to your Microsoft 365 tenant, and through APIs, they are able to do their work. They are doing all this through APIs, so you do not have to install the software and take a month to get it all set up to even see the value of the solution. You could be up and running in less than an hour."
"I like Abnormal's threat protection with auto-remediation, but I also love its abuse mailbox feature, which automatically responds to the end user. That feature has a super-valuable security component and helps improve the user experience."
"I have never encountered any stability issues with Abnormal."
"Abnormal Security's AI capabilities are what we like most, as they can categorize and classify the emails, and based on the context of the email, understand if it's a graymail, a bulk mail, or a phish."
"The features that appeal to me most are the combination of auto-remediation and Detection 360."
"I would recommend Abnormal Security."
"The solution uses artificial intelligence and machine learning, so you don't need train it to detect something. The detection and response times are short. It's an excellent product."
"It has a really nice web-based administration console."
"The simplicity and the easy deployment ensure that anybody who has worked on Exchange can easily work on this."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"The email policy configuration options in Microsoft EOP are satisfactory."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"We use the solution in all our environments. We use it for remedy tickets and give them updates. It was our main communication point."
"The most valuable feature of Microsoft Exchange Online Protection is the accidental release of information protection capabilities, and additionally, the solution is easy to use."
 

Cons

"I would like to have the ability to customize the auto-remediation feature."
"There could be more selectable options and more granular selections available."
"When we're working on something as engineers, and we find an idea or a method of doing something that would be greatly improved by doing it another way, there should be an ability for me to click the ideas button, type in an idea that I have, and submit it to a product review team or developers to have them think through the process a little bit more."
"For Abnormal Security as a product, I would say probably somewhere around a seven, as there are some other areas where they can improve to achieve a higher rating."
"The biggest pain point for us is the lack of support for on-premise email systems."
"The pricing for academic institutions and student mailboxes is challenging."
"Abnormal should add more automatic reports. I have an open request to our account team for more notification and report types that can be sent automatically. For example, they have an awesome report that gets sent weekly, and I also want them monthly, so I don't need to do so much adding up when my director wants numbers over time."
"One feature I'd love to see is outbound scanning."
"The tool is not 100% stable."
"The solution can be complex at times. It would be nice to have the on-server version. It needs to improve the stability as well."
"The user interface of Microsoft Exchange Online Protection (EOP) has room for improvement, as at times it doesn't make sense where to go to access certain features."
"We have experienced issues while migrating from on-prem to the cloud. The tool needs to improve its stability."
"I am somewhat happy with technical support from Microsoft. Sometimes it takes a while to get through to the right person or team."
"The licensing can be on the expensive side, especially in the cloud space."
"Microsoft Exchange Online Protection is quite a difficult product."
"The reporting needs a little bit of improvement."
 

Pricing and Cost Advice

"The pricing appears fair, and they demonstrate a genuine willingness to work with us on it."
"The license is based on the user count, so the number of users that have an email address in the organization."
"Overall, we'd certainly prefer lower pricing, but Abnormal Security doesn't seem unreasonable compared to similar offerings in the market."
"Abnormal Security, on the other hand, provides the same level of functionality for just over $60,000 – that's half the price!"
"The solution is expensive but is backed by Microsoft's reputation."
"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."
"It is a low-price solution."
"The product's pricing is competitive for the US market."
"The product is bundled with Microsoft 365."
"The solution is priced high and could be less expensive compared to other solutions."
"The price of Microsoft Exchange Online Protection is reasonable."
"The pricing for the solution depends on what you are trying to achieve with the use of the product, but I know that it is not a cheaply priced product. Yearly payments have to be made towards the licensing fees of the solution."
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Top Industries

By visitors reading reviews
Manufacturing Company
10%
Financial Services Firm
9%
Computer Software Company
8%
Government
6%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
9%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business1
Midsize Enterprise2
Large Enterprise8
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise6
Large Enterprise13
 

Questions from the Community

What is your experience regarding pricing and costs for Abnormal Security?
I find the pricing to be favorable, but I did not disclose the exact cost.
What needs improvement with Abnormal Security?
Ease of use is important, and Abnormal Security's responsiveness and ability to deliver solutions when issues arise are crucial. However, there is always room for improvement, as achieving a perfec...
What is your primary use case for Abnormal Security?
The main use case for Abnormal Security is as a spam filter and for mail hygiene. This use case is for the finance industry.
What needs improvement with Microsoft Exchange Online Protection?
From an end-user point of view, I am quite happy with Microsoft Exchange Online Protection (EOP) because my favorite feature is the ease with which I can identify if an email is a phishing email or...
What is your primary use case for Microsoft Exchange Online Protection?
Microsoft Exchange Online Protection (EOP) serves as the main use case for my company because, as a research company, we require a very high level of security. We use multiple authentication method...
What advice do you have for others considering Microsoft Exchange Online Protection?
My experience with Microsoft Exchange Online Protection (EOP) is from an end-user perspective, and I do not have admin management experience. I am not familiar with the Advanced Threat Protection f...
 

Also Known As

No data available
Microsoft EOP, MS Exchange Online Protection
 

Overview

 

Sample Customers

Foot Lcoker, Xerox, Liberty Mutual, Mattel, Boston Scientific
Information Not Available
Find out what your peers are saying about Abnormal Security vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: November 2026.
921,148 professionals have used our research since 2012.