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Microsoft Defender for Business vs Microsoft Purview Insider Risk 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 for Busi...
Ranking in Microsoft Security Suite
16th
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
20
Ranking in other categories
Endpoint Protection Platform (EPP) (18th)
Microsoft Purview Insider R...
Ranking in Microsoft Security Suite
28th
Average Rating
8.0
Reviews Sentiment
5.7
Number of Reviews
5
Ranking in other categories
Insider Risk Management (2nd)
 

Mindshare comparison

As of January 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender for Business is 3.5%, up from 3.0% compared to the previous year. The mindshare of Microsoft Purview Insider Risk Management is 2.4%, up from 0.3% 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 Business3.5%
Microsoft Purview Insider Risk Management2.4%
Other94.1%
Microsoft Security Suite
 

Featured Reviews

Takayuki-Umehara - PeerSpot reviewer
Public Cloud Engineer at Prudential
Product deployment protects assets but needs improvement in system support
I am doing maintenance for Microsoft Defender for Business, and I'm currently working with it. We don't need to use the latest version of Microsoft Defender for Business. We still use the latest virus definition file that Microsoft Defender for Business has automatically updated. We implement a basic update mechanism. Our compliance division manages how many servers and PCs we have and whether those servers have antivirus solutions. I am not certain about how Microsoft Defender for Business helps with AI-driven security strategies. I just use it normally and don't know if it uses AI technology. I rate Microsoft Defender for Business a six out of ten.
Karthik Ekambaram - PeerSpot reviewer
Director at Scybers
Have consistently built secure internal environments while implementing compliance tools for diverse customer needs
The customizable alerts system needs improvement. The detection rules are not extensive enough. There should be more possibilities for creating alerts based on additional criteria. While rules can be customized, the available criteria for creating detection rules should be expanded. Microsoft's pricing is very expensive. The Business Premium offering should be extended to enterprise customers, as it's currently limited to 300 users. There should be a tier below E5 that includes Microsoft Purview and other features. Currently, E5 licensing costs approximately 6,000 INR per user per month including taxes. Competitive solutions offer similar functionality at about 50% of Microsoft's cost. Email DLP is included in Business Premium or P1 licenses, while P2 licenses cover endpoint DLP and additional channels. Microsoft should introduce an intermediate tier below E5 that covers all P1 licenses, as customers often need coverage across the entire M365 suite.

Quotes from Members

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

Pros

"The solution provides good scalability."
"It is scalable."
"Defender's main strength is its integration with Microsoft Sentinel, offering valuable insights."
"The most effective features of Microsoft Defender for Business include its threat detection and response capabilities in managing vulnerabilities and ransomware attacks."
"Microsoft Defender for Business stands out due to its ease of use, particularly due to the fact that many of my customers already use Microsoft and Azure."
"Microsoft Defender for Business offers the best pricing option in the market and is very cost-effective."
"The solution includes attack-savvy service and risk protection, part of data center management, and offers an effective single-dashboard view with Microsoft 365."
"The most valuable feature of the solution is its central console."
"The best thing about Purview is that it's easy to integrate with our day-to-day environment. We have Active Directory, and Word and Excel. Using a third-party vendor and trying to integrate with our existing environment would be much more challenging."
"The scoring mechanism is exceptional because it eliminates the need to reinvent criteria for identifying risks, misconfigurations, or vulnerabilities."
"An example of how these features from Microsoft Purview Insider Risk Management have benefited my organization is that we recently discovered a foreign actor, someone from North Korea took a job at our company and was pretending to be an employee, and with Microsoft Purview Insider Risk Management, they notified us of that problem and we were able to remediate the fact that we had a North Korean spy working for us."
"Microsoft Purview Insider Risk Management was helpful in performing investigations after alerts were received."
"Insider Risk Management's graphing is highly specific and useful. You can see the last six months of data for the Microsoft tenant. You can easily find what you need. For example, you can filter for alerts about devices, emails, etc."
 

Cons

"The user interface has a lot of features which can make it complex and hard to adapt to for some users."
"Talking with the tool's technician about any problem is very complicated."
"The areas where Microsoft Defender for Business could improve include the support, installation process, and wiki. I should be able to find solutions to issues quickly without having to delve too deep."
"The technical support from Microsoft is very poor. I would rate it a one, as their technical staff are very junior and take a long time to respond to simple questions."
"Defender's threat protection should be fine-tuned to reduce false positives. It could be more targeted, reflecting a continuous evolution in detecting. Also, it could be easier to integrate into other environments."
"We faced some issues while running some applications on Mac."
"The security could always be improved."
"Technical support could be faster to respond."
"The user interface also isn't user-friendly. When we introduce Insider Risk Management to our clients, they often find it difficult to understand. There is too much information, and the UI is not scalable. Also, entry-level IT technicians are not always interested in learning something new. It should be clearer and easier to understand."
"The reporting capabilities sometimes leave a little to be desired. It could be improved in terms of producing reports to provide information to the C-suite or others."
"For certain things, you need to install an agent. I understand it's for integrity, but if there could be a clientless solution for certain aspects, it would make life easier."
"Microsoft's pricing is very expensive. The Business Premium offering should be extended to enterprise customers, as it's currently limited to 300 users."
"My experience with the deployment of Microsoft Purview Insider Risk Management was a fifty-fifty situation because we have a very diverse network, and not all of it is on Microsoft products."
 

Pricing and Cost Advice

"Defender for Business is included by default with an Office 365 premium subscription."
"The tool's cost has been a little high, but I do not think it was terrible."
"The tool is cheap, while some other solutions are more expensive. I remember the tool cost about five euros for a workstation or for a user on a monthly basis."
"It has to get more competitive because we are starting to see some of the competitors providing better pricing, and some of it, of course, is to gain market share. The Defender product pricing is probably a little higher than the competitors."
"Since we're a nonprofit, we get pretty good discounts on the tool."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Comms Service Provider
8%
Government
6%
Financial Services Firm
6%
Computer Software Company
18%
Financial Services Firm
9%
Outsourcing Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise2
Large Enterprise4
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Defender for Business?
Our thoughts on the pricing for Microsoft Defender for Business are that we wish it could be better. If the pricing was a little better, we would definitely increase what we currently have.
What needs improvement with Microsoft Defender for Business?
I see room for improvement in Microsoft Defender for Business, particularly regarding the consolidation of all security solutions in one place and the integration of AI and data security into the s...
What needs improvement with Microsoft Purview Insider Risk Management?
I feel Microsoft Purview Insider Risk Management can be improved by being able to identify patterns and practices of users to determine whether or not they fit the normal use case of a developer, a...
What is your primary use case for Microsoft Purview Insider Risk Management?
My main use cases involve identifying issues related to problems with the current software deployments and whether or not it is being utilized correctly.
What advice do you have for others considering Microsoft Purview Insider Risk Management?
My advice to another organization that is considering using Microsoft Purview Insider Risk Management is to make sure they plan out their deployment very carefully because the biggest sticking poin...
 

Also Known As

No data available
Microsoft Insider Risk Management
 

Overview

Find out what your peers are saying about Microsoft Defender for Business vs. Microsoft Purview Insider Risk Management and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.