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Microsoft Defender External Attack Surface Management vs Microsoft Purview Data Lifecycle Management 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
32nd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (12th)
Microsoft Purview Data Life...
Ranking in Microsoft Security Suite
33rd
Average Rating
7.4
Reviews Sentiment
7.2
Number of Reviews
3
Ranking in other categories
Email Archiving (11th), Document Management Software (2nd), Data Governance (29th)
 

Mindshare comparison

As of October 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 0.4%, up from 0.2% compared to the previous year. The mindshare of Microsoft Purview Data Lifecycle Management is 0.6%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Market Share Distribution
ProductMarket Share (%)
Microsoft Defender External Attack Surface Management0.4%
Microsoft Purview Data Lifecycle Management0.6%
Other99.0%
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…
AnonyAdmin - PeerSpot reviewer
Provides data protection across platforms and connects to different devices
The rollout of Microsoft Purview Data Lifecycle Management is not yet complete. The goal of this implementation is to mitigate the risk of oversharing, particularly in anticipation of the broader adoption of Copilot. Purview's ability to connect to iOS, Mac, and Android devices, as well as data in other SaaS applications, is crucial. As a university with a bring-your-own-device policy, we cannot control the devices used by our diverse population of students and faculty. Therefore, an inclusive ecosystem that seamlessly integrates with various devices is essential, as we cannot enforce restrictions on specific devices or mandate particular technologies due to the open nature of our system. It is critical that Purview provides data protection across diverse cloud and platform environments, including AWS and GCP. Historically, our primary platform has been AWS, but we are increasingly expanding into Microsoft Azure. Therefore, I anticipate a future where we utilize both platforms extensively, making comprehensive data protection essential. Purview's design incorporates critical global regulations, ensuring compliance for university researchers and the institution itself with government and various regulatory requirements. Purview enhances visibility across our data estate. The new AI-powered data security features, especially the oversharing report, promise to be invaluable by providing insights into potentially overshared files and sites. This automation eliminates the need for custom scripts and manual data mining, previously necessary for identifying such issues, and ultimately saves significant development time. Purview saves time by eliminating the need for manual scripts, which can take days to run due to the volume of people and sites involved. Instead of running scripts multiple times or waiting hours for completion, Purview's built-in functionality provides immediate access to reports, streamlining the entire process.

Quotes from Members

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

Pros

"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"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."
"The automatic data labeling is compelling, and we are investigating its use."
"Purview's built-in functionality provides immediate access to reports, streamlining the entire process."
"The system is stable; I haven't encountered any worldwide stability issues unlike other office products."
"The UI is the most valuable feature."
 

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."
"Microsoft Purview Data Lifecycle Management can be challenging to implement due to its complexity and dense documentation, making it difficult to get started."
"The time it takes to scan is one issue; when we raise high-volume issues and tickets related to scanning failures, it relates to permission errors, which are technical challenges."
"Microsoft's Purview Data Lifecycle Management preview features can be unreliable, hindering their usefulness."
"Microsoft Purview Data Lifecycle Management can be challenging to implement due to its complexity and dense documentation, making it difficult to get started."
 

Pricing and Cost Advice

Information not available
"The service operates on a pay-as-you-go basis, charging an extra one cent per field of metadata scanned in our data."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
13%
Manufacturing Company
7%
Comms Service Provider
6%
Computer Software Company
13%
Government
12%
Financial Services Firm
10%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
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 is your experience regarding pricing and costs for Microsoft Purview Data Lifecycle Management?
We opted for Purview Data Lifecycle Management due to its significant cost advantage over competitors. At a 95 percent price reduction, it was a clear winner. The service operates on a pay-as-you-g...
What needs improvement with Microsoft Purview Data Lifecycle Management?
One of the requirements is to have data leak policies and data access policies. This is very critical to enforce data governance standards, which relate to data classification, access control, data...
What is your primary use case for Microsoft Purview Data Lifecycle Management?
I am a customer and user of the tools. We are a big shop, and both the companies I work for are Microsoft Office 365 customers with over eighty thousand seats. Microsoft Purview Data Lifecycle Mana...
 

Also Known As

No data available
Microsoft Information Governance, Microsoft Purview Records Management
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Microsoft Purview Data Lifecycle Management and other solutions. Updated: September 2025.
869,202 professionals have used our research since 2012.