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Microsoft Defender External Attack Surface Management vs Microsoft Purview Information Protection 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
34th
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (12th)
Microsoft Purview Informati...
Ranking in Microsoft Security Suite
14th
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
12
Ranking in other categories
Data Governance (4th), Data Privacy Management Software (1st)
 

Mindshare comparison

As of April 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 0.2%, up from 0.1% compared to the previous year. The mindshare of Microsoft Purview Information Protection is 1.1%, down from 1.3% 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…
Heidi Hasting - PeerSpot reviewer
Provides an essential audit trail that helps prevent accidental exposure of sensitive data, but the changing product names are confusing
One of the key features of Microsoft Purview Information Protection is the auto-classification functionalities, although I have found them to be less effective in complex scenarios. The policy toggle, demanding justification for downgrading labels, provides an essential audit trail that helps prevent accidental exposure of sensitive data. The security tools integrate well. I like that you can scan several data or informational assets, such as your SharePoint list, Teams, etc., and bring them into Purview as a central repository. Partnering with other products, like Sentinel, for logging capability and inventory provides a service across the board. It's essential that Purview automatically prevents highly sensitive corporate secrets and data from being ingested into generative AI models, but the reality is that AI is a tool. It's problematic if consumers rely on a tool to protect them because they must be educated first. Regardless of the education, the employee might share the information anyway, so the AI shouldn't be the first point of failure. It should be a human making good decisions.

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."
"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."
"We use the solution for our customers' services. It helps identify and protect sensitive data in documents, PDFs, emails, and Teams chats to prevent data leakage. It can detect and block emails containing credit card information sent outside the organization."
"The UI is user-friendly, and I have observed that it improves further each year."
"Before using it, we had a lot of unlabeled data, and the tool helped us quickly and accurately label a large number of documents."
"Purview is about auditing and discoverability. We need to ensure people aren't releasing information that they shouldn't and that they're doing multi-factor authentication or accessing it from the correct devices. It aids in reducing silos within organizations, enabling staff to easily find documents and contacts without exhausting human resources."
"The scalability of Microsoft Purview Information Protection is excellent."
"It ensures that sensitive data is automatically safeguarded, even for email attachments, regardless of the user or device."
"Incorporating data loss prevention capabilities built into the Microsoft platform to endpoints, such as Windows 10 and Windows 11 computers, can also help prevent data loss and is highly advantageous."
"The reporting capabilities of Microsoft Purview are crucial. They provide insights into potentially non-compliant situations and suggest ways to rectify them. The solution helps to automate many tasks, allowing human operators to focus on areas where they offer the most value."
 

Cons

"With Microsoft, support is always crazy, it's not easy to get support."
"Further integration across different Microsoft products would be an improvement."
"The integration is not as seamless compared to competitors like Palo Alto."
"The communication around Microsoft product names and functionalities can be confusing, like when they combined Office 365 Risk and Compliance with Azure Purview. Then, they added Purview Hub to Fabric, and people thought Purview Hub would do data lineages, but it didn't. It isn't full-fledged Purview. It's just one feature set."
"Our primary concern is third-party application visibility. Many people choose other DLP tools, as they can search the Office 365 suite and detect sensitive information across thousands of other apps. The product is weak compared to the competitors on the DLP front, but the classification is good; the tool needs a bit more maturation."
"There should be more training and communication regarding new features. I may be missing those communications, but it often seems like changes happen in the Purview portal without notice. Having a roadmap or updates about new releases would be helpful for demonstrating to clients. If things are constantly changing, I sometimes look silly when I log in, and things have moved or changed."
"There is room for improvement with the policy tips feature."
"Microsoft customer service is hit or miss. Sometimes, I get a fast and knowledgeable response, while other times, I've experienced delays and received no resolution."
"I had experience with previous versions of Microsoft Purview Information Protection as well. The new version doesn't have all the features that were present in the previous native clients and functionalities. For example, the ability to track documents - knowing where your document is, who is accessing it, when and where. You could even revoke access to a particular document if needed, which was a cool feature. These aren't available right now, although Microsoft is working on bringing them back, which might take some time."
"Purview could better integrate with third-party tools, but I don't have a specific use case for that because It's currently integrated into the managed services we offer to Microsoft customers using E5 licenses."
"I wouldn't recommend Microsoft Purview Information Protection for petabytes of documents as performance might be affected."
 

Pricing and Cost Advice

Information not available
"The product is affordable, and our clients agree. Sensitivity labels come with the MIP license at an additional $2 a month per user, an excellent deal for auto-labeling capabilities."
"Initially, Purview's cost seemed quite high because it was for personal use. I was scanning a tiny tenant and thinking, "If I extrapolate this to an enterprise-scale tenant, it will be quite costly." However, I talked to people who had compared it to other products on the market, and they're spending five figures to get started. At least, Purview has a free trial, so you can try some of the features early on."
"The tool's pricing is not a problem for customers because they often purchase it as part of a bundle. With an E5 license, for example, users get access to the entire functionality. This is one of the main reasons why many customers are choosing Microsoft."
"The price is determined by the enterprise licensing, either the E3 or E5 licensing or the EMS plus security and other feature licensing."
"The tool's pricing is fairly low, less than 100,000 for a year."
"The pricing and setup costs are transferred to my clients, who find it affordable and are satisfied with what they receive."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
12%
Manufacturing Company
6%
Insurance Company
6%
Financial Services Firm
19%
Computer Software Company
13%
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 Purview Information Protection?
It ensures that sensitive data is automatically safeguarded, even for email attachments, regardless of the user or device.
What is your experience regarding pricing and costs for Microsoft Purview Information Protection?
The pricing is not very high and is considered fine. Microsoft offers different licensing options. AIP Plan 2 is used for critical users. The AIP is included in the business standard license for cl...
What needs improvement with Microsoft Purview Information Protection?
The most difficult part in the labeling solution is the lack of direct PDF support on Macs, whereas on Windows, a Purview agent can label PDFs. This should be improved to support PDF protection on ...
 

Also Known As

No data available
Microsoft Information Protection
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Microsoft Purview Information Protection and other solutions. Updated: February 2025.
848,207 professionals have used our research since 2012.