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Microsoft Defender External Attack Surface Management vs Microsoft Defender for Business 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

Microsoft Defender External...
Ranking in Microsoft Security Suite
33rd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (13th)
Microsoft Defender for Busi...
Ranking in Microsoft Security Suite
17th
Average Rating
7.8
Reviews Sentiment
7.0
Number of Reviews
19
Ranking in other categories
Endpoint Protection Platform (EPP) (21st)
 

Mindshare comparison

As of August 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 0.3%, up from 0.1% compared to the previous year. The mindshare of Microsoft Defender for Business is 3.3%, up from 2.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite
 

Featured Reviews

AndyChan3 - PeerSpot reviewer
Enhanced visibility and exposes vulnerabilities but needs more integration
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will move to full-scale production in another year, maybe Microsoft External Attack Surface Management…
Takayuki-Umehara - PeerSpot reviewer
Product deployment protects assets but needs improvement in system support
I am doing maintenance for Microsoft Defender for Business, and I'm currently working with it. We don't need to use the latest version of Microsoft Defender for Business. We still use the latest virus definition file that Microsoft Defender for Business has automatically updated. We implement a basic update mechanism. Our compliance division manages how many servers and PCs we have and whether those servers have antivirus solutions. I am not certain about how Microsoft Defender for Business helps with AI-driven security strategies. I just use it normally and don't know if it uses AI technology. I rate Microsoft Defender for Business a six out of ten.

Quotes from Members

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

Pros

"It seems to be better at protecting from cyberattacks."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"Everything is stable. There have been no technical errors or stability issues."
"Using Microsoft Defender for Business is beneficial for my company."
"It is scalable."
"The solution provides good scalability."
"I rate Microsoft Defender for Business a 10 out of 10."
"The security features are valuable because they come with more capabilities that other licenses do not have, including the enterprise license like E3."
"Microsoft Defender for Business is good for small and medium-sized businesses. It offers solid security flexibility and integration with tools like Microsoft Lighthouse and some other software. It takes some of the features of Defender for Endpoint EDR and provides those services for small and medium-sized business environments."
"Microsoft Defender for Business offers the best pricing option in the market and is very cost-effective."
 

Cons

"Further integration across different Microsoft products would be an improvement."
"The integration is not as seamless compared to competitors like Palo Alto."
"With Microsoft, support is always crazy, it's not easy to get support."
"The tool's support is an area of concern where improvements are needed."
"Customer service is not bad, yet not great either, and I would rate it maybe five or six out of ten."
"Pricing could be lowered as it is expensive and not suitable for low-budget organizations."
"I am not satisfied with Microsoft's technical support. There are challenges with the knowledge and experience of the support staff, frequent redirection between departments, and slow response times."
"The areas where Microsoft Defender for Business could improve include the support, installation process, and wiki. I should be able to find solutions to issues quickly without having to delve too deep."
"Defender's reporting is rather scattered, and its URL filtering mechanism doesn't really work."
"Additionally, the pricing policy poses a challenge, particularly in multi-year contracts, where other solutions like Trend Micro offer more affordable options."
"The threat detection capabilities require significant customization for multistage threat detection."
 

Pricing and Cost Advice

Information not available
"Defender for Business is included by default with an Office 365 premium subscription."
"Since we're a nonprofit, we get pretty good discounts on the tool."
"The tool is cheap, while some other solutions are more expensive. I remember the tool cost about five euros for a workstation or for a user on a monthly basis."
"It has to get more competitive because we are starting to see some of the competitors providing better pricing, and some of it, of course, is to gain market share. The Defender product pricing is probably a little higher than the competitors."
"The tool's cost has been a little high, but I do not think it was terrible."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
13%
Manufacturing Company
7%
Comms Service Provider
5%
Computer Software Company
18%
Comms Service Provider
8%
Retailer
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What needs improvement with Microsoft Defender External Attack Surface Management?
Further integration across different Microsoft products would be an improvement. Introduction of more AI automation into the products would also be beneficial. The integration is not as seamless co...
What is your primary use case for Microsoft Defender External Attack Surface Management?
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will ...
What do you like most about Microsoft Defender for Business?
A few things are valuable. One is the alerting we see when any kind of intrusion is happening, any kind of malware is being deployed across the endpoints, or any kind of suspicious activity is goin...
What is your experience regarding pricing and costs for Microsoft Defender for Business?
Our thoughts on the pricing for Microsoft Defender for Business are that we wish it could be better. If the pricing was a little better, we would definitely increase what we currently have.
What needs improvement with Microsoft Defender for Business?
Microsoft Defender for Business could improve by offering more of their offerings available in the basic tenants since not everyone has a budget for higher-level licenses, but everyone needs securi...
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Microsoft Defender for Business and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.