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Microsoft Defender External Attack Surface Management vs Microsoft Purview Data Loss Prevention 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 Purview Data Loss...
Ranking in Microsoft Security Suite
16th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
22
Ranking in other categories
Data Loss Prevention (DLP) (1st)
 

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 Purview Data Loss Prevention is 2.8%, up from 2.2% 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…
HosmanRodriguez - PeerSpot reviewer
Nice dashboard, good data loss prevention, and helps with compliance
The data loss prevention is great. It can prevent things like credit card information from being taken. The data protection is excellent. We can use the solution on Windows and iOS. We mostly use it with Office 365 and ingest data sources from Microsoft. The solution is natively integrated and compliant across Azure. It takes into account critical regulations from around the world. We need to comply with various regulations. For our business case, it's very important. If we can prevent information from going out, eventually, when a regulator is asking about our security measures, we can show what we've been doing. It helps us to reduce the likelihood of potential fines. We can educate users on how to handle sensitive data. By showing the records we keep and explaining the technologies implemented, we can provide awareness to our users. The solution offers good visibility into our environment. Our security team can use the product to monitor and track. Its dashboard allows us to show compliance in real-time. We've been able to reduce the time to action on insider threats. Security permissions are always being monitored. In general, it has saved us time and money when dealing with security. It's made us become more efficient. We've increased our compliance capabilities by 25%.

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."
"When you are going to use Microsoft Purview Data Loss Prevention, most of the setup is already done by default as per your needs."
"It has helped our clients to reduce the time to action on insider threats because it can be integrated."
"The auto-labeling feature is definitely the most valuable feature. It goes in and labels the documents for you in different repositories. It covers the Outlook and Exchange repositories along with SharePoint and OneDrive. It is really helpful in those areas."
"If we can prevent information from going out, eventually, when a regulator is asking about our security measures, we can show what we've been doing."
"Because everything is on Microsoft and we use Azure, integration with the product is easier. That's the most important thing when you use many Microsoft products. It's easier to integrate everything in one place."
"The solution's IDM (Indexed Document Matching), EDM (Exact Data Matching), and DCM (Described Content Matching) features have been most effective in identifying and mitigating potential data leaks."
"The impact of Microsoft Purview Data Loss Prevention's classification and policy controls on our productivity within our organization is significant, as it's helped our security team."
"We can triage based on quick and sometimes constant alerts."
 

Cons

"With Microsoft, support is always crazy, it's not easy to get support."
"The integration is not as seamless compared to competitors like Palo Alto."
"Further integration across different Microsoft products would be an improvement."
"There is a lot of ambiguity when you are setting up labels, such as sensitive information labels. It is a little daunting at first if you don't have prior knowledge, and there is a little bit of a learning curve for setting up the labels. Some of the setup wizards could be more helpful from an AI perspective. They can streamline the setup through more AI technologies so that you don't have to jump through so many hoops and different menus and dropdowns. It would be useful to have a setup wizard that is more hands-off and engaging for setting up the information type labels. If you tell them this is what we're trying to protect, it should basically start to lead you down that path of best practices. Such a feature would be great."
"Improving Microsoft Purview Data Loss Prevention would involve recognizing that the whole AI path we are all on is going to help, given the massive amount of data we handle; even if there are true positives, implementing a degree of severity ranking is essential."
"Endpoint Data Loss Prevention needs to be improved as it is not up to expectations."
"All the security operations are better defined in Forcepoint, while in Microsoft Purview Data Loss Prevention, you will have to use a specific workflow and then an application to release blocked emails."
"The AI advancements can improve the false positives."
"The support is poor."
"The scalability, in terms of the portal, could be more user-friendly. Sometimes I have faced difficulties in identifying the options."
"Technical support is awful."
 

Pricing and Cost Advice

Information not available
"It is a part of our Microsoft licensing. We pay for a yearly renewal. Its price is reasonable for the size of the organization we are. It is fairly competitive, and you get what you pay for. We have an E5 license, and a part of understanding the E5 license is to see what all you get with it. If you really look at it from that standpoint, you get a lot of value. You have Defender and all its security features in there as well. Their licensing is fairly flexible. They have different programs. We've seen ones where you could pay for up to three to five years in advance. There is also a monthly pay-as-you-go type of deal, but we're doing a yearly renewal and fixing the budget."
"I am satisfied with the tool's pricing."
"Though I am not a specialist, the tool is quite expensive."
"The cost works out to about $15 per user per month."
"It's a little bit pricey compared to competitors, but it's not too high."
"The pricing is reasonable."
"If one is very cheap and ten is very expensive, I rate the price as one out of ten."
"The solution’s pricing is reasonable."
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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%
Financial Services Firm
15%
Computer Software Company
12%
Manufacturing Company
8%
Insurance Company
5%
 

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 Purview Data Loss Prevention?
The most valuable features are identifying sensitive data and issuing alerts.
What is your experience regarding pricing and costs for Microsoft Purview Data Loss Prevention?
My experience with the pricing, setup costs, and licensing is not something I manage directly since I'm the owner operator; my colleagues might be more involved with that aspect as we have other te...
What needs improvement with Microsoft Purview Data Loss Prevention?
Improving Microsoft Purview Data Loss Prevention would involve recognizing that the whole AI path we are all on is going to help, given the massive amount of data we handle; even if there are true ...
 

Also Known As

No data available
Microsoft Endpoint Data Loss Prevention, MS Endpoint DLP, Microsoft Endpoint DLP
 

Overview

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