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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
4.5
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.
The ease of accessing necessary information promptly is the biggest return on investment.
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.
 

Customer Service

Sentiment score
7.4
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.
The quality of support is very good, but troubleshooting can take time due to complex setups and the need to provide many logs.
Technical support from Microsoft rates an eight on a scale of 1 to 10 for response time.
I would rate Microsoft Purview eDiscovery's customer service and technical support a ten.
 

Scalability Issues

Sentiment score
7.3
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.
It scales with us seamlessly.
With the E3 licensing, I would rate the scalability of Microsoft Purview eDiscovery as a six because it lacks certain critical search functionalities.
 

Stability Issues

Sentiment score
6.9
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.
We do not see any issues with the stability of Microsoft Defender for Identity.
Having recently started using it, reliability is affirmed, but manual investigation is often performed to verify if alerts identified by auto-remediation are accurate.
For us, it has been one hundred percent reliable.
Microsoft Purview eDiscovery is highly reliable.
 

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.
One improvement I would recommend is the integration of an admin application within Teams, allowing easy access to attack information on a mobile platform.
Reducing false positives is something we've been working on with Microsoft.
Adding more features, as Microsoft continues to expand their cloud offerings, would be beneficial.
Defining what constitutes a credit card because that is where I get the most false positives.
We find that many critical functions are available only to E5 license holders.
 

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.
Ensuring a fair price according to market standards.
From an organization perspective, using E5 licenses is value for money, especially if Azure and Office 365 are already in use.
With CSP or MCE-style agreements with Microsoft, the process is streamlined since we have reps from both Microsoft and CDW working together.
As an M3, I find the Purview pricing of 1250 per user worthwhile.
The pricing and licensing with Microsoft can be complex, and licensing is known to be a challenge because it changes frequently.
 

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.
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.
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.
The most valuable feature of Microsoft Purview eDiscovery is its ability to search across various platforms, including Exchange, SharePoint, Teams, and OneDrive.
Purview can connect to iOS, Mac, Android, and SaaS apps, which is critical for capturing SMS and MMS text message data.
Purview's inclusion of global regulations is critical because we're heavily regulated by FERC, Sarbanes-Oxley, and the SEC.
 

Categories and Ranking

Microsoft Defender for Iden...
Ranking in Microsoft Security Suite
3rd
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
26
Ranking in other categories
Advanced Threat Protection (ATP) (5th), Identity Threat Detection and Response (ITDR) (3rd)
Microsoft Purview eDiscovery
Ranking in Microsoft Security Suite
26th
Average Rating
7.6
Reviews Sentiment
7.5
Number of Reviews
8
Ranking in other categories
eDiscovery (2nd)
 

Mindshare comparison

As of October 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender for Identity is 6.5%, down from 7.6% compared to the previous year. The mindshare of Microsoft Purview eDiscovery is 1.1%, up from 0.7% 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 Identity6.5%
Microsoft Purview eDiscovery1.1%
Other92.4%
Microsoft Security Suite
 

Featured Reviews

Peter Arabomen - PeerSpot reviewer
Has supported hybrid identity management while integrating well with cloud directory services
The only challenge I have with Microsoft Defender for Identity is the latency. I may not put that entirely on Microsoft, because latency could be network related. At times when trying to authenticate, the prompt is delayed. We tried implementing passwordless authentication, especially for on-premises workloads, but we haven't been able to achieve that. Passwordless authentication is part of the identity functionalities, particularly when it comes to enforcing passwordless for on-premises workloads. In terms of improvements, you can't create OUs on Azure AD. Regarding giving users privileges on what they can do across different OUs, I haven't seen that feature on Microsoft Defender for Identity. Microsoft Defender for Identity needs to be able to plug into third-party applications that are not Microsoft. For instance, with a human resource application used to manage users and leave requests, when staff leaves the organization, they are first exited from that application before AD. Integration between Azure AD and third-party applications would allow automatic syncing when removing staff. The initial setup of Microsoft Defender for Identity is not hard. However, setup is one thing, and getting value from the application end-to-end is another. It can be set up and running from the first day but not functioning optimally. Initially, when we did the setup, it wasn't optimal. Over time, with continuous improvement, which we're still doing, we've gotten to a comfortable level, but there's still room for improvement.
Frank Radeck - PeerSpot reviewer
Tasks that took an entire day before we implemented the solution now take just 30 minutes.
The most valuable feature of Microsoft Purview eDiscovery is its ability to search across various platforms, including Exchange, SharePoint, Teams, and OneDrive. It enables a streamlined, unified process for searching across these platforms. It is critical for Purview to be able to connect to iOS, Mac, and Android devices and data in other SaaS apps. From a support perspective, I can do things while I'm eating lunch or something else. It's more dynamic and responsive. I think everybody appreciates it. We're not tied to one device. Purview's multi-cloud capabilities are also essential for the same reasons. Keeping everything under one umbrella further increases the time savings. Purview accounts for critical regulations from around the world. This is crucial because we hold ourselves accountable to standards and need to align with them. Working at a law firm, we have clients who dictate to us what standards they expect. The visibility is excellent. As we move more things into the cloud, more opportunities exist to put everything under one umbrella.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
12%
Manufacturing Company
8%
Comms Service Provider
7%
Government
14%
Financial Services Firm
12%
Computer Software Company
11%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise3
Large Enterprise14
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise3
 

Questions from the Community

What do you like most about Microsoft Defender for Identity?
Microsoft Defender for Identity provides excellent visibility into threats by leveraging real-time analytics and data intelligence.
What needs improvement with Microsoft Defender for Identity?
The only challenge I have with Microsoft Defender for Identity is the latency. I may not put that entirely on Microsoft, because latency could be network related. At times when trying to authentica...
What is your primary use case for Microsoft Defender for Identity?
I've used Microsoft Defender for Identity primarily for provisioning users on Azure AD and Microsoft authentication. For hybrid scenarios, I integrate on-premises AD to Azure AD. We use AD Connect ...
What do you like most about Microsoft Purview eDiscovery?
The tool has been beneficial. Some of our previous users left the organization without sharing the information they had at a personal level. This information was related to the organization, and th...
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...
 

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: September 2025.
869,513 professionals have used our research since 2012.