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Abnormal Security vs Microsoft Exchange Online Protection (EOP) 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

Abnormal Security
Ranking in Email Security
4th
Average Rating
9.4
Reviews Sentiment
7.5
Number of Reviews
11
Ranking in other categories
Secure Email Gateway (SEG) (3rd)
Microsoft Exchange Online P...
Ranking in Email Security
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (12th)
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Abnormal Security is 5.7%, down from 6.7% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 4.3%, down from 7.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Abnormal Security5.7%
Microsoft Exchange Online Protection (EOP)4.3%
Other90.0%
Email Security
 

Featured Reviews

William Schellhaas - PeerSpot reviewer
Senior Director of IT at Crunch Fitness West Florida and Atlanta (CR Fitness)
Provides comprehensive email security management, effective in detecting a wide range of email threats
The ideal scenario would be for Abnormal Security to work in tandem with Microsoft to analyze incoming emails. This means Abnormal Security would assess emails before they reach my inbox, even if it happens slightly after Microsoft's initial scan. Currently, the process isn't seamless. Microsoft analyzes emails and delivers legitimate ones to my inbox. Abnormal Security then scans these delivered emails, and if flagged as malicious, they disappear. This creates a problem for our ticketing system mailbox, which is a third-party service. Emails sent to the ticketing system address are automatically forwarded by Microsoft. However, if these emails are malicious, Abnormal Security only cleans them from my Outlook mailbox after they've been forwarded. Since we primarily rely on the ticketing system and not the Outlook mailbox, these malicious emails still reach the ticketing system.
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

"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."
"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."
"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."
"Their ability to take things out of the mailbox and catch things much faster than users is excellent."
"Initial auto-remediation allows us to auto-remediate before the email lands in the end user's inbox for a split second."
"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."
"I would recommend Abnormal Security."
"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 initial setup of Microsoft Exchange Online Protection was easy."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"It offers great security against malware and other threats."
"Microsoft EOP's most valuable feature is a shared mailbox."
"The scalability is pretty good; it does what it is supposed to do."
"The email policy configuration options in Microsoft EOP are satisfactory."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
 

Cons

"There could be room for improvement in enhancing integration with other cybersecurity tools."
"One feature I'd love to see is outbound scanning."
"The ideal scenario would be for Abnormal Security to work in tandem with Microsoft to analyze incoming emails."
"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."
"I, as such, do not have anything that I do not like or would like to add, but you could argue that because they are doing it API-based, there is a chance that something could slip through temporarily before they are able to pull it out. In theory, it could happen just because of the nature of the system. They are not in line with the delivery of the mail. They are kind of asynchronous, which is a pro as well as a con. If it is synchronous, then I know it would always stop them, but because it is asynchronous, things could get through temporarily or because of some system issues on the Microsoft side or their side. It is the nature of the beast, but it is a little bit of a con."
"I would like to have the ability to customize the auto-remediation feature."
"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."
"Microsoft 365 Defender and EOP policies are stable with the proper license. However, with the basic policy, it's hard to say it's stable due to configuration limitations."
"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."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
"Our Exchange system is very locked down and secure, yet we still got hacked."
"When the product is being updated, it changes some of the setups. The support team is also not good."
"The solution lacks to elaborate on its spam policies."
"The security features could be better."
"The solution needs to improve its backup."
 

Pricing and Cost Advice

"Abnormal Security, on the other hand, provides the same level of functionality for just over $60,000 – that's half the price!"
"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."
"The pricing appears fair, and they demonstrate a genuine willingness to work with us on it."
"The price of Microsoft Exchange Online Protection is reasonable."
"It's a high price."
"Online Protection is fairly expensive."
"The solution is priced high and could be less expensive compared to other solutions."
"The tool's pricing is excellent."
"The price could be lower."
"The product is bundled with Microsoft 365."
"It is a low-price solution."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
9%
Government
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 Business24
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

What do you like most about Abnormal Security?
The features that appeal to me most are the combination of auto-remediation and Detection 360.
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 do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
What needs improvement with Microsoft Exchange Online Protection?
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.
What is your primary use case for Microsoft Exchange Online Protection?
My use case for Microsoft Exchange Online Protection (EOP) is basically to protect ourselves from phishing emails and to improve our email security.
 

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: February 2026.
881,455 professionals have used our research since 2012.