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Microsoft Defender XDR vs Microsoft Sentinel 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
7.1
Microsoft Defender XDR provides high ROI by consolidating security tools, streamlining operations, and enhancing security, despite licensing costs.
Sentiment score
6.7
Microsoft Sentinel enhances ROI with automation, boosts productivity, lowers costs, and improves security through efficient integration and faster responses.
We can quarantine and isolate a device within minutes.
Information Security Analyst at a educational organization with 10,001+ employees
Microsoft Defender XDR has saved me at least 50% of my time.
House security operator at Cypress Creek Renewables
It helped stop multiple intrusion points where we would have had millions in lost revenue if the attackers got in.
Network Technician at T. Baker Smith, LLC
If a customer is already using Microsoft’s ecosystem, the ROI can be positive due to seamless integration.
senior cyber security at a tech services company with 201-500 employees
Our MTTR, mean time to response, improved by forty to fifty percent. Earlier, medium-severity incidents took two to three hours to resolve. Now, after Microsoft Sentinel, it is forty to fifty-five minutes.
Cyber Security Consultant at ProTechmanize
We attribute our growth to Sentinel.
Chief Commercial Officer at defend
 

Customer Service

Sentiment score
6.1
Microsoft Defender XDR's support is timely and responsive, yet smaller organizations experience slower, less effective assistance than larger ones.
Sentiment score
6.5
Microsoft Sentinel support is praised for quick, knowledgeable responses, with higher satisfaction in premium plans despite some documentation challenges.
You get stuck in low-level support for way longer than you should, instead of them escalating the issue up the chain.
Enterprise Application Engineer at a legal firm with 1,001-5,000 employees
It's critical to escalate SEV B issues immediately to a domestic engineer.
Infrastructure engineer at Cetera Financial Group
Once issues are escalated to the second or third layer, the support is much better.
Cyber Security Engineer at a financial services firm with 1-10 employees
Their solutions' integration simplifies resolving issues compared to those caused by third-party products.
IT Consultant at MAN Truck & Bus SE
Microsoft invests significantly in support, which is crucial for companies.
Director de Microsoft y Transformación Digital at Compucad
Working with a Sentinel engineer helped us tune settings effectively.
Systems Emgineer at a non-profit with 1-10 employees
 

Scalability Issues

Sentiment score
6.9
Microsoft Defender XDR scales well for various organizations, efficiently supporting growth and flexibility despite some network deployment challenges.
Sentiment score
7.7
Microsoft Sentinel offers scalable, cloud-based operations with seamless Azure integration, emphasizing elasticity and cost considerations for effective data management.
My concern is about the scale of events and alerts being generated, and the product is doing a very good job of only surfacing the important items for us.
Vice President, Information Technology at a construction company with 201-500 employees
Microsoft Defender XDR shows tremendous scalability, much more so than on-premises solutions.
Infrastructure engineer at Cetera Financial Group
Microsoft Defender XDR scales pretty well.
Information Security Analyst at a educational organization with 10,001+ employees
Office 365 and Exchange are running on it, covering about 35,000 users efficiently.
IT Consultant at MAN Truck & Bus SE
There is no need to add hardware or redesign infrastructure because it is cloud-native.
Cyber Security Consultant at ProTechmanize
As our organization uses Microsoft Azure and Defender, everything grows together, and we can integrate various features seamlessly.
Systems Emgineer at a non-profit with 1-10 employees
 

Stability Issues

Sentiment score
8.1
Microsoft Defender XDR is praised for high stability, reliable performance, minimal issues, frequent updates, and prompt issue resolution.
Sentiment score
7.8
Microsoft Sentinel is reliable with 99.9% uptime, minor glitches, and minimal maintenance thanks to its managed service aspect.
The service has remained consistently online, with any issues isolated to specific components, suggesting a well-designed and modular architecture.
Senior System Engineer at a sports company with 5,001-10,000 employees
The services within our ecosystem have been reliable, meeting their SLAs.
Infrastructure engineer at Cetera Financial Group
It provides high-fidelity signals.
Information Security Analyst at a educational organization with 10,001+ employees
So far, we have not experienced any issues, and it has been stable from the beginning.
IT Consultant at MAN Truck & Bus SE
In the past two years, our team hasn't encountered any issues with the stability of Microsoft Sentinel from an operations perspective.
Project Executive at synergyc
I need to be aware of deprecated connectors as they may disconnect, but the data continues to be sent with a need for quick adaptation.
senior cyber security at a tech services company with 201-500 employees
 

Room For Improvement

Microsoft Defender XDR requires enhancements in speed, integration, automation, AI, ease-of-use, and industry-specific threat intelligence.
Users seek better integration, documentation, user-friendliness, AI, automation, and transparency in Microsoft Sentinel for improved threat management.
The licensing process needs improvement and clarification.
Owner at a consultancy with 11-50 employees
Improvements are needed in automated response capabilities.
Security manager at a consultancy with 10,001+ employees
Some inconsistencies exist between blades, which could be improved for a more seamless user and UI experience.
Infrastructure engineer at Cetera Financial Group
Log ingestion and retention costs can grow quickly, and understanding which data source is driving cost is not always straightforward.
Cyber Security Consultant at ProTechmanize
We have some tools, such as our off-site Meraki firewalls, that have not fully integrated with Sentinel.
Systems Emgineer at a non-profit with 1-10 employees
Currently, we are happy to have a way in the middle with not so much cost, but it would be nice to have the ability to enhance the automation of workflows based on learned incidents.
IT Consultant at MAN Truck & Bus SE
 

Setup Cost

Microsoft Defender XDR pricing is seen as complex but fair, with high costs alleviated in bundled Microsoft 365 packages.
Microsoft Sentinel's pricing is flexible yet costly, requiring optimization and integration to maximize cost-effectiveness for data management.
There are certainly savings when using Microsoft Defender XDR, which can range from 30%, 40%, and even up to 50%.
Director, Sales at a tech vendor with 201-500 employees
I would rate the pricing as eight out of ten, indicating it is a reasonable cost for the product.
Security manager at a consultancy with 10,001+ employees
Microsoft purposefully obfuscates this through marketing ploys to hide costs.
Senior System Engineer at a sports company with 5,001-10,000 employees
It has been beneficial that Microsoft Sentinel is included as part of the Microsoft package, making it more cost-effective.
Senior System Administrator at a university with 5,001-10,000 employees
Microsoft Sentinel is not a low-cost SIEM.
Cyber Security Consultant at ProTechmanize
Microsoft Sentinel offers more capabilities than Bastion, with a more intuitive experience.
Project Executive at synergyc
 

Valuable Features

Microsoft Defender XDR integrates tools for comprehensive security, offering threat detection, automation, identity protection, and enhanced efficiency.
Microsoft Sentinel excels in integration, AI, scalability, automation, and user experience, with powerful threat detection and response features.
With Microsoft threat intelligence information, it detects various types of threats, including insider attacks, malicious content, and data exfiltration.
Security manager at a consultancy with 10,001+ employees
This allows us to secure our systems in advance and proactively improve security, rather than waiting for incidents to occur.
Works at Hometrack
Once we have it on the security dashboard, we can see a real-time storyline.
Information Security Analyst at a educational organization with 10,001+ employees
Microsoft Sentinel's ability to correlate data from multiple sources and its detection capabilities are essential.
Cost Engineer at a tech vendor with 10,001+ employees
Microsoft Sentinel has improved cost efficiency, which is one of the key areas we're able to win business against the ability to have threat intelligence.
Chief Commercial Officer at defend
Microsoft Sentinel's ability to correlate data from multiple sources enhances our threat detection capabilities beyond what is a simple data lake solution by filtering out the noise and consolidating the signal down to a meaningful level that is easier to investigate and see.
Solutions Architect at a tech vendor with 201-500 employees
 

Categories and Ranking

Microsoft Defender XDR
Ranking in Microsoft Security Suite
5th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
106
Ranking in other categories
Endpoint Detection and Response (EDR) (7th), Extended Detection and Response (XDR) (4th)
Microsoft Sentinel
Ranking in Microsoft Security Suite
6th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
104
Ranking in other categories
Security Information and Event Management (SIEM) (4th), Security Orchestration Automation and Response (SOAR) (1st), AI-Powered Cybersecurity Platforms (5th)
 

Mindshare comparison

As of January 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender XDR is 6.3%, up from 4.9% compared to the previous year. The mindshare of Microsoft Sentinel is 4.7%, down from 5.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Market Share Distribution
ProductMarket Share (%)
Microsoft Defender XDR6.3%
Microsoft Sentinel4.7%
Other89.0%
Microsoft Security Suite
 

Featured Reviews

KO
House security operator at Cypress Creek Renewables
Advanced threat hunting saves significant time in tracking and responding to incidents
Microsoft Defender XDR could be improved with a lower price. My main suggestion would essentially be what Copilot is providing, which is a single pane of glass, so I don't have to go to different windows. That's just a workflow consideration for me. It would be great to have all the information centralized into one particular data app. If I need to open up extra ones, I can, however, I would appreciate a future where everything I need is right there on one single pane of glass. Beyond that, there's really nothing else I see that I would want Microsoft to improve.
Kallamuddin Ansari - PeerSpot reviewer
Cyber Security Consultant at ProTechmanize
Centralized monitoring has improved threat response but cost control still needs refinement
Based on real operations used in our corporate IT environment, the key features include log correlation and incident view. Microsoft Sentinel's biggest strength is how it correlates multiple related alerts into a single incident. This significantly reduces alert noise and helps the SOC focus on real threats instead of isolated events. Another valuable feature is KQL-based threat hunting with Kusto Query Language. The flexibility of this language allows us to build custom hunting queries based on our environment's behavior. This is extremely useful for detecting low and slow threats or hidden threats that default rules may miss. Cloud-native scalability and stability is another important feature. Being cloud-native, Microsoft Sentinel scales well for medium to large corporate environments without infrastructure management. Stability has been solid in day-to-day production. SOAR automation using playbooks is a feature we highly recommend. Microsoft Sentinel's SOAR functionality helps automate repetitive SOC tasks like alert enrichment and notification. This saves analyst time and improves response consistency.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
9%
Manufacturing Company
8%
Comms Service Provider
7%
Computer Software Company
14%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise25
Large Enterprise38
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise22
Large Enterprise45
 

Questions from the Community

What do you like most about Microsoft 365 Defender?
Microsoft Defender XDR provides strong identity protection with comprehensive insights into risky user behavior and potential indicators of compromise.
What is your experience regarding pricing and costs for Microsoft 365 Defender?
My experience with pricing, setup, costs, and licensing of Microsoft Defender XDR is tied to our E5 subscription, which is very straightforward for us. We also purchase the uplift for our mobile us...
What needs improvement with Microsoft 365 Defender?
I am not aware of a mobile app that would be available for my team. With a single analyst, if she is ever away, it would be beneficial to have easier access. While she can use the web portal, the e...
Is there a common threat intelligence tool that aggregates multiple threat intelligence sources?
Yes, Azure Sentinel is a SIEM on the Cloud. Multiple data sources can be uploaded and analyzed with Azure Sentinel and its Threat Hunting functionality with AI available as templates or customized ...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
Which is better - Azure Sentinel or AWS Security Hub?
We like that Azure Sentinel does not require as much maintenance as legacy SIEMs that are on-premises. Azure Sentinel is auto-scaling - you will not have to worry about performance impact, you will...
 

Also Known As

Microsoft 365 Defender, Microsoft Threat Protection, MS 365 Defender
Azure Sentinel
 

Overview

 

Sample Customers

Accenture, Deloitte, ExxonMobil, General Electric, IBM, Johnson & Johnson and many others.
Microsoft Sentinel is trusted by companies of all sizes including ABM, ASOS, Uniper, First West Credit Union, Avanade, and more.
Find out what your peers are saying about Microsoft Defender XDR vs. Microsoft Sentinel and other solutions. Updated: December 2025.
880,901 professionals have used our research since 2012.