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Microsoft Defender for Identity vs Microsoft Purview eDiscovery 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:
 

ROI

Sentiment score
4.4
Microsoft Defender for Identity is cost-effective and efficient, offering incident prevention and resolution without complex hardware setups.
Sentiment score
7.7
Microsoft Purview eDiscovery boosts ROI by improving data efficiency, compliance, risk management, and reducing legal and IT workloads.
We have seen a 100% return on investment.
Senior System Engineer at a sports company with 5,001-10,000 employees
The ease of accessing necessary information promptly is the biggest return on investment.
Manager, Information Technology Operations & Security at a energy/utilities company with 201-500 employees
It's hard to quantify the ROI in a dollar amount, but we realize value by doing more tasks in less time than we did before.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
 

Customer Service

Sentiment score
6.9
Opinions on Microsoft Defender for Identity support vary, highlighting responsiveness, but issues include delays, contact challenges, and false positives.
Sentiment score
7.6
Microsoft Purview eDiscovery is praised for responsive support, despite some mixed experiences with wait times and outcomes.
Generally, the support is more effective than other providers like Oracle.
Owner at Alopex ONE UG
The quality of support is very good, but troubleshooting can take time due to complex setups and the need to provide many logs.
Cloud Security & Governance at a financial services firm with 10,001+ employees
The people I normally use for support are very knowledgeable, especially when they help remote in and get to where I need to go and show me much faster and help me understand what I should be doing.
Technology Coordinator at a educational organization with 501-1,000 employees
I would rate Microsoft Purview eDiscovery's customer service and technical support a ten.
Is admin at a energy/utilities company with 1,001-5,000 employees
 

Scalability Issues

Sentiment score
7.2
Microsoft Defender for Identity efficiently integrates and scales globally, supporting diverse organizational needs within Microsoft’s ecosystem effectively.
Sentiment score
7.9
Microsoft Purview eDiscovery is scalable and efficient, seamlessly integrating with cloud infrastructures but lacks some search functions.
In a Microsoft-centric organization, especially with Azure infrastructure and Office 365, Microsoft Defender for Identity is scalable.
Cloud Security & Governance at a financial services firm with 10,001+ employees
It scales with us seamlessly.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
With the E3 licensing, I would rate the scalability of Microsoft Purview eDiscovery as a six because it lacks certain critical search functionalities.
Is admin at a energy/utilities company with 1,001-5,000 employees
 

Stability Issues

Sentiment score
7.0
Microsoft Defender for Identity is highly reliable, with minimal incidents, seamless operation, and consistent ratings between seven and nine.
Sentiment score
8.6
Microsoft Purview eDiscovery is generally stable, with minor slowdowns, but users seek more transparency on performance issues.
Microsoft Defender for Identity is quite robust and built on Azure hyperscale infrastructure, with a 99% availability.
Cloud Security & Governance at a financial services firm with 10,001+ employees
We do not see any issues with the stability of Microsoft Defender for Identity.
Deputy Manager at Servion Global Solutions
Having recently started using it, reliability is affirmed, but manual investigation is often performed to verify if alerts identified by auto-remediation are accurate.
Instrumentation Engineer at Toyo Engineering Corp
For us, it has been one hundred percent reliable.
Manager, Information Technology Operations & Security at a energy/utilities company with 201-500 employees
Microsoft Purview eDiscovery is highly reliable.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
 

Room For Improvement

Microsoft Defender for Identity users seek improved cloud integration, user-friendly features, better support, and streamlined processes for enhanced threat management.
Microsoft Purview eDiscovery needs faster, more efficient features, better integration, NLP for queries, and affordable pricing for users.
If Microsoft could develop a feature that indicates when impossible travel is caused by VPN connections, it would prevent unnecessary password resets and session disruptions, especially for VIP users in organizations.
CyberSecurity Engineer | Information Security Management at Self Employed
One improvement I would recommend is the integration of an admin application within Teams, allowing easy access to attack information on a mobile platform.
Owner at Alopex ONE UG
Reducing false positives is something we've been working on with Microsoft.
Cloud Security & Governance at a financial services firm with 10,001+ employees
Adding more features, as Microsoft continues to expand their cloud offerings, would be beneficial.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
Defining what constitutes a credit card because that is where I get the most false positives.
Senior System Engineer at a sports company with 5,001-10,000 employees
We find that many critical functions are available only to E5 license holders.
Is admin at a energy/utilities company with 1,001-5,000 employees
 

Setup Cost

Microsoft Defender for Identity is cost-effective with E5 licenses despite complex pricing and competitive against other security solutions.
Microsoft Purview eDiscovery pricing is complex, with E5 costly yet beneficial, while E3 is cheaper but limited.
If they can reduce the costs, organizations will be happy, and it will compensate for using the Azure environment, which is more expensive on the infrastructure as a service side.
CyberSecurity Engineer | Information Security Management at Self Employed
Ensuring a fair price according to market standards.
Owner at Alopex ONE UG
From an organization perspective, using E5 licenses is value for money, especially if Azure and Office 365 are already in use.
Cloud Security & Governance at a financial services firm with 10,001+ employees
With CSP or MCE-style agreements with Microsoft, the process is streamlined since we have reps from both Microsoft and CDW working together.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
As an M3, I find the Purview pricing of 1250 per user worthwhile.
Senior System Engineer at a sports company with 5,001-10,000 employees
The pricing and licensing with Microsoft can be complex, and licensing is known to be a challenge because it changes frequently.
Enterprise Content Mamagement Lead Developer at a energy/utilities company with 1,001-5,000 employees
 

Valuable Features

Microsoft Defender for Identity integrates with Azure to offer comprehensive threat detection, identity protection, and advanced real-time security insights.
Microsoft Purview eDiscovery ensures efficient data retrieval with multi-platform integration, automation, compliance visibility, and adherence to global data privacy laws.
We receive an advance report of risky users, allowing us to take preemptive action before an attack causes damage to organization details.
Instrumentation Engineer at Toyo Engineering Corp
The most valuable feature is its hybrid artificial intelligence, which gathers forensic data to track and counteract security threats, much like the CSI series in effect.
Owner at Alopex ONE UG
The advanced threat protection is one of the strengths of Microsoft Defender for Identity, as it utilizes user and entity analytics and can detect indicative attacks.
Cloud Security & Governance at a financial services firm with 10,001+ employees
The most valuable feature of Microsoft Purview eDiscovery is its ability to search across various platforms, including Exchange, SharePoint, Teams, and OneDrive.
Director, IT Infrastructure & Cloud Technology at a legal firm with 501-1,000 employees
Purview can connect to iOS, Mac, Android, and SaaS apps, which is critical for capturing SMS and MMS text message data.
Is admin at a energy/utilities company with 1,001-5,000 employees
Purview's inclusion of global regulations is critical because we're heavily regulated by FERC, Sarbanes-Oxley, and the SEC.
Enterprise Content Mamagement Lead Developer at a energy/utilities company with 1,001-5,000 employees
 

Categories and Ranking

Microsoft Defender for Iden...
Ranking in Microsoft Security Suite
4th
Average Rating
8.8
Reviews Sentiment
6.8
Number of Reviews
28
Ranking in other categories
Advanced Threat Protection (ATP) (8th), Identity Threat Detection and Response (ITDR) (3rd)
Microsoft Purview eDiscovery
Ranking in Microsoft Security Suite
22nd
Average Rating
7.6
Reviews Sentiment
7.5
Number of Reviews
8
Ranking in other categories
eDiscovery (1st)
 

Mindshare comparison

As of January 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender for Identity is 6.0%, down from 7.5% compared to the previous year. The mindshare of Microsoft Purview eDiscovery is 1.5%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Identity6.0%
Microsoft Purview eDiscovery1.5%
Other92.5%
Microsoft Security Suite
 

Featured Reviews

RK
Cloud Security & Governance at a financial services firm with 10,001+ employees
Protect on-premises and hybrid environments with advanced threat detection and seamless integration
Our Active Directory implementation is a hybrid one. The advanced threat protection is one of the strengths of Microsoft Defender for Identity, as it utilizes user and entity analytics and can detect indicative attacks. It identifies lateral movements, privilege escalations, and alerts on potential attacks. The tool is also used for security posture assessment. The seamless integration with other Microsoft solutions within our Microsoft-centric environment is also a major advantage.
reviewer2595618 - PeerSpot reviewer
Senior System Engineer at a sports company with 5,001-10,000 employees
Has made it significantly easier to handle rare litigation requests
The speed of it is valuable. I am able to search even 10,000 mailboxes for specific content. It helps search and accommodate the often limited information provided by users regarding what they need. It provides a solid starting point, and then we are able to refine the data from there. That has been very helpful because we do not always get enough information from our users to know what to look for. For example, a user is missing an email from x date but does not know anything else. In such a case, I give them a list of emails to look at so that they can tell me what they are missing. It is not a lack of the tool. It is more of a lack of the user providing info.
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881,114 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
13%
Computer Software Company
12%
Manufacturing Company
8%
Comms Service Provider
7%
Government
13%
Financial Services Firm
12%
Computer Software Company
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise4
Large Enterprise14
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise3
 

Questions from the Community

What needs improvement with Microsoft Defender for Identity?
I really would have to sit down to think about how Microsoft Defender for Identity can be improved. I didn't take stock in what needs to be improved because I appreciated having the tools right the...
What is your primary use case for Microsoft Defender for Identity?
My main use cases for Microsoft Defender for Identity include Conditional Access, checking risky users, remediating risky users, and user sign-ins. I can easily remediate or determine what the user...
What advice do you have for others considering Microsoft Defender for Identity?
I don't really use Microsoft Defender for Identity a lot because my new role doesn't allow me to take time to do so. I don't really use the threat intelligence feature of Microsoft Defender for Ide...
What is your experience regarding pricing and costs for Microsoft Purview eDiscovery?
The setup process was very straightforward. We acquired pricing through our reseller in NASDAQ, eliminating the need to search for prices ourselves.
What needs improvement with Microsoft Purview eDiscovery?
The query language can be time-consuming to figure out if you don't know it initially. While there are options with dropdowns to select criteria, having a natural language feature would be benefici...
What is your primary use case for Microsoft Purview eDiscovery?
I sometimes use it for legal holds or to find lost items, and to determine what is going on. However, most of the time, my use case is legal-related.
 

Also Known As

Azure Advanced Threat Protection, Azure ATP, MS Defender for Identity
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Identity is trusted by companies such as St. Luke’s University Health Network, Ansell, and more.
Information Not Available
Find out what your peers are saying about Microsoft Defender for Identity vs. Microsoft Purview eDiscovery and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.