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Coro vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive Summary

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

Coro
Ranking in Email Security
54th
Average Rating
0.0
Reviews Sentiment
3.1
Number of Reviews
1
Ranking in other categories
Data Loss Prevention (DLP) (68th), Endpoint Protection Platform (EPP) (54th), Endpoint Detection and Response (EDR) (56th)
Microsoft Defender for Offi...
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
60
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of January 2026, in the Email Security category, the mindshare of Coro is 0.4%, up from 0.4% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 9.6%, down from 13.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Office 3659.6%
Coro0.4%
Other90.0%
Email Security
 

Featured Reviews

Vignesh  K - PeerSpot reviewer
Practice Engineer at Cloudunicorn.in
Auto scanning and enhanced security but re-adding protections need improvement
At that time, we observed certain issues with the product. The functionalities could be improved, such as the isolation feature. If we remove our protection, we cannot easily add it back. If, in our organization, we need to remove a specific system for a particular time, we cannot add it back for security after doing so. This is one thing we have experienced. Scalability is also lacking. If we want to do the same thing repeatedly, there's not much the solution offers; it isn't very strong.
Emeka Ndulu - PeerSpot reviewer
Cloud Solutions Architect at a tech services company with 201-500 employees
Improves threat visibility and response while reducing manual tasks and training users against phishing
I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection. It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment. I get to detect it and respond, so the threat intelligence is very effective. Microsoft security solutions save my time. It saves money because once I protect my environment, I don't lose money. It has decreased my detection time and my time to respond.

Quotes from Members

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

Pros

"The auto-scanning feature is quite beneficial."
"The auto-scanning feature is quite beneficial."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"Our customers are satisfied with Defender for 365 because Microsoft products are easy to use and customize to meet the client's needs. Everything is in one place, so we can adjust policies as needed for phishing, DLP, ATP, or any other security features that our clients want to apply."
"Defender for Office 365 has helped eliminate having to look at multiple dashboards and that is the aspect I like most about it. It is simpler, effective, and convenient. The users like the process efficiency."
"The risk level notifications are most valuable. We get to know what kind of intrusion or attack is there, and we can fix a problem on time."
"The two main features that prove most beneficial for us are URL scanning and attachment scanning."
"The benefit that stands out to me is the ability for multiple individuals to collaborate simultaneously within the same document. Additionally, there is the option to save the document directly in the integrated OneDrive or SharePoint."
"I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection."
"There are several features that I consider valuable."
 

Cons

"The functionalities could be improved, such as the isolation feature."
"Scalability is lacking. If we want to do the same thing repeatedly, there's not much the solution offers; it isn't very strong."
"There's room for improvement regarding the time frame for retrieving emails."
"The XDR dashboard has room for improvement."
"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."
"The product must provide better malware detection."
"We need a separate license and we don't know how to get the license that is required."
"The certification training for Defender for 365 needs to be deeper and incorporate Sentinel. I took all the security courses except one, and Sentinel isn't included."
"The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster."
"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."
 

Pricing and Cost Advice

Information not available
"I was working in the government and it was too expensive for us to use our Microsoft products."
"It's a user-base subscription."
"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"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."
"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."
"The pricing is normal. Considering its popularity, it's not overpriced."
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Top Industries

By visitors reading reviews
Computer Software Company
10%
Manufacturing Company
9%
Comms Service Provider
8%
Healthcare Company
7%
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise10
Large Enterprise31
 

Questions from the Community

What is your experience regarding pricing and costs for Coro?
The cost is reasonable because it is aimed at SMB customers, not enterprise customers. The prices are reasonable. We received a demo license, so we tried it more extensively.
What needs improvement with Coro?
At that time, we observed certain issues with the product. The functionalities could be improved, such as the isolation feature. If we remove our protection, we cannot easily add it back. If, in ou...
What is your primary use case for Coro?
We have not sold the product to any customers as of now. We are still in the testing phase, which means we, along with our partners, are the current users.
What needs improvement with Microsoft Defender for Office 365?
The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster.
What is your primary use case for Microsoft Defender for Office 365?
My use case for Microsoft Defender for Office 365 is for email protection, safe links, protection of links, documents, protecting my documents, and protecting attachments. I also use it to conduct ...
 

Also Known As

No data available
MS Defender for Office 365
 

Overview

 

Sample Customers

Lenovo, Dropbox, T-Systems
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Microsoft, Proofpoint, Check Point Software Technologies and others in Email Security. Updated: January 2026.
881,082 professionals have used our research since 2012.