Microsoft Sentinel vs i-SIEM [EOL] comparison

Why PeerSpot?

LevelBlue and Microsoft are both solutions in the Security Information and Event Management (SIEM) category. Additionally, 100% of LevelBlue users are willing to recommend the solution, compared to 93% of Microsoft users who would recommend it.

i-SIEM [EOL]

Read 1 i-SIEM [EOL] review

100% willing to recommend

Microsoft Sentinel

Read 108 Microsoft Sentinel reviews

23,659 Views
12,776 Comparison Views

93% willing to recommend

i-SIEM [EOL]

Microsoft Sentinel

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Executive SummaryUpdated on Nov 2, 2025

i-SIEM [EOL] and Microsoft Sentinel compete in the security information and event management (SIEM) space. Microsoft Sentinel is perceived as superior due to its comprehensive features, making it worth the higher cost.

Features: i-SIEM [EOL] offers robust threat detection capabilities, customizable analytics templates, and supports a wide range of third-party tools. Microsoft Sentinel provides artificial intelligence for advanced threat detection, seamless integration with Microsoft's cloud ecosystem, and real-time threat insights, further complemented by native connectors for smooth integration.

Ease of Deployment and Customer Service: i-SIEM [EOL] supports straightforward deployment, with responsive and accessible customer service. Microsoft Sentinel's integration within the Azure ecosystem eases deployment for existing Microsoft frameworks, supported by online resources and community support that aid in efficient adoption.

Pricing and ROI: i-SIEM [EOL] is more economical, appealing to budget-conscious companies, offering reasonable ROI through efficient security management. Microsoft Sentinel requires a higher initial investment, justified through high ROI from extensive capabilities, scalability, and integration within Microsoft infrastructures, favoring organizations aiming for long-term strategic benefits.

To learn more, read our detailed Security Information and Event Management (SIEM) Report (Updated: September 2026).

Buyer's Guide

Security Information and Event Management (SIEM)

September 2026

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Helped 914,322 peers since 2012

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

i-SIEM [EOL]

Average Rating

9.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Microsoft Sentinel

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

108

Ranking in other categories

Security Information and Event Management (SIEM) (3rd), Security Orchestration Automation and Response (SOAR) (3rd), Microsoft Security Suite (5th), AI-Powered Cybersecurity Platforms (5th)

Featured Reviews

Dannie Combs

Senior Vice President and Chief Information Security Officer at Donnelley Financial Solutions

The alert fatigue and false positive rates have just plummeted, which is really exciting.

empow has a few areas of improvement as with any other technology, such as continuing to drive innovation in the dashboard. While we've been extremely impressed with the dashboard's ease of use, flexibility, ability to drill down deeply, and focus very intently on an area of interest, there will always be opportunities to be more innovative and open it up to a wider audience than just the operations group, for example. With reporting, there is always a desire to have custom reporting for every client of empow. Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus.

Read full review

Kallamuddin Ansari

Cyber Security Consultant at HR Software Solution

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.

Read full review

Quotes from Members

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

Pros

"As a result of the automation, we are able to manage SIEM with a small security team. I'm in a unique position where we have been growing the security organization quite rapidly over the last three and a half years. But, as a direct result of the empow transition and legacy collection of tools towards the empow platform, we've been able to keep that head count flat. We've been able to redirect a lot of the security team's time away from the wash, rinse, repeat activities of responding to alarms where we have a high degree of confidence that they will be false positives, adjusting the rules accordingly. This can be a bit frustrating for the analyst when they have to spend hours a day dealing with these types of probable false positives. So, it has helped not only us keep our headcount flat relative to the resources necessary to provide the assurances that our executives expect of us for monitoring, but allows our analyst team to spend the majority of their time doing what they love. They are spending their time meaningfully with a higher degree of confidence and enjoying getting into the incident response type activity."

"From a monitoring and incident response perspective, empow is the most valuable asset we have in our toolkit."

"Sentinel also enables you to ingest data from your entire ecosystem and not just from the Microsoft ecosystem. It can receive data from third-party vendors' products such firewalls, network devices, and antivirus solutions. It's not only a Microsoft solution, it's for everything."

"For any customers who are either looking at Azure or already have Azure or Microsoft 365, this is a great service to look at because it does provide an additional layer of protection and security for all of their data points, whether they are on-prem or in the cloud."

"The most valuable feature is the alert notifications, which are categorized by severity levels: informational, low, medium, and high."

"My advice to another organization considering it is that if you're using all Microsoft, you should be using Microsoft Sentinel since it's free."

"Having your logs put all in one place with machine learning working on those logs is a good feature."

"I recommend implementing Sentinel because it's certainly the most powerful SIEM tool."

"The main benefit is that as companies migrate their systems and services into the Cloud, especially if they're migrating into Azure, they've got a native SIEM available to them immediately."

"Sentinel's cost-effectiveness blows a lot of other solutions out of the water, especially if you're already in Azure and you can leverage some relationships to bring that cost down."

More Microsoft Sentinel pros

Cons

"Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus."

"We have opted for the pay-as-you-go model, which doesn't come with free support."

"The integration challenges arise from both sides; Google tends to be noisy, and we find only ten analytic rules out of the box, necessitating the use of Defender for Cloud for alerts, which indicates a need for better documentation during deployment."

"The performance could be improved. If I create 15 to 20 lines for a single-use case in KQL, sometimes it takes more time to execute. If I create use cases within a certain timeline, the result will show in .01 seconds. A complex query takes more time to get results."

"The solution should allow for a streamlined CI/CD procedure."

"However, we are not using it for some features, mainly for cost-related reasons and our company policy."

"Documentation is the main thing that could be improved. In terms of product usage, the documentation is pretty good, but I'd like a lot more documentation on Kusto Query Language."

"There is a wider thing called Jupyter Notebooks, which is around the automation side of things. It would be good if there are playbooks that you can utilize without having to have the developer experience to do it in-house. Microsoft could provide more playbooks or more Jupyter Notebooks around MITRE ATT&CK Framework."

"The cost can be a little confusing at first, but the Azure calculator is a great place to start."

More Microsoft Sentinel cons

Pricing and Cost Advice

"I don't have to put up with any longer with these hypercomplex licensing agreements. Every time I want to add some additional reporting as a compliance centric or regulatory specific, e.g., GDPR, PCI, or Sarbanes-Oxley, many providers would have an additional license for this, which felt a bit ridiculous to me. With the simplified licensing architecture, there were no hidden "gotchas" down the road with empow. Something I have experienced with other providers that I've worked with in the past."

"With a higher degree of fidelity in the alarms, we were able to avoid adding additional resources to our teams. We take into account the cost of security resources in the market and the significantly higher fidelity from the alarms that are being generated. This drove down our costs with our MSSP. It drove down my cost for human capital internally. It drove down our need to have multiple resources supporting the underlying infrastructure and health and maintenance of empow as a platform from several resources down to one. Therefore, human capital costs were significantly reduced. Our operating expenses were significantly reduced. Our capital costs were significantly reduced while tripling our capacity and our run rate reduced. It was almost a "too good to be true" situation. Fortunately, for us, it worked out very nicely."

"The pay-as-you-go model is beneficial to customers."

"Sentinel can be expensive. When you ingest data from sources that are outside of the cloud, you're paying a fair amount for that data ingestion. When you're ingesting data sources from within the cloud, depending on what your retention periods are, it's not that expensive."

"It varies on a case-by-case basis. It is about $2,000 per month. The cost is very low in comparison to other SIEMs if you are already a Microsoft customer. If you are using the complete Microsoft stack, the cost reduces by almost 42% to 50%. Its cost depends on the number of logs and the type of subscription you have. You need to have an Azure subscription, and there are charges for log ingestion, and there are charges for the connectors."

"Azure Sentinel is very costly, or at least it appears to be very costly. The costs vary based on your ingestion and your retention charges."

"Microsoft Sentinel requires an E5 license."

"It is a consumption-based license model. bands at 100, 200, 400 GB per day etc. Azure Sentinel Pricing | Microsoft Azure"

"The price is reasonable because Sentinel includes features like user behavior analytics and SOAR that are typically sold separately. Overall, a standalone on-prem solution would require some high-end servers, and there's a different cost. It is a cloud-based solution, so there are backend cloud computing costs, but they are negligible."

"For us, it is not expensive at this time, but if we start to collect all logs from our on-premise SIEM solutions, it will cost more than QRadar. If we calculate its cost over the next five or ten years, it will cost more than what we paid for QRadar."

More Microsoft Sentinel pricing and cost advice

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Top Industries

By visitors reading reviews

Outsourcing Company

16%

Construction Company

13%

Comms Service Provider

10%

Performing Arts

10%

Financial Services Firm

10%

Manufacturing Company

10%

Computer Software Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	44
Midsize Enterprise	23
Large Enterprise	47

Questions from the Community

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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 ...

See all answers

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 ...

See all answers

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...

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Comparisons

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Compared 8% of the time

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Compared 8% of the time

Trellix ESM vs i-SIEM [EOL]

Compared 7% of the time

OpenText Behavioral Signals vs i-SIEM [EOL]

Compared 7% of the time

AWS Security Hub vs i-SIEM [EOL]

Compared 6% of the time

More i-SIEM [EOL] Competitors

AWS Security Hub vs Microsoft Sentinel

Compared 17% of the time

SentinelOne Singularity AI SIEM vs Microsoft Sentinel

Compared 4% of the time

CrowdStrike Falcon vs Microsoft Sentinel

Compared 4% of the time

IBM Security QRadar vs Microsoft Sentinel

Compared 3% of the time

Cortex XSIAM vs Microsoft Sentinel

Compared 3% of the time

More Microsoft Sentinel Competitors

Product Reports

Buyer's Guide

Security Information and Event Management (SIEM)

September 2026

Download i-SIEM [EOL] product report

Buyer's Guide

Microsoft Sentinel

September 2026

Download Microsoft Sentinel product report

Also Known As

No data available

Azure Sentinel

Overview

i-SIEM [EOL] is an innovative security information and event management platform designed to enhance threat detection and response capabilities in IT environments.

i-SIEM [EOL] offers a comprehensive approach to managing and analyzing security alerts, ensuring that businesses can effectively mitigate risks. With advanced threat intelligence and robust analytics, it helps organizations streamline their security operations and improve incident response times, providing each organization the information required to make informed security decisions.

What are the most important features of i-SIEM [EOL]?

Real-time Monitoring: Continuously tracks network activity to detect potential threats.
Advanced Threat Detection: Utilizes AI to identify sophisticated attacks.
Customizable Dashboards: Allows users to tailor their view and focus on relevant data.
Automated Incident Response: Streamlines the response process by automating certain actions.
Scalable Architecture: Easily adapts to growing business needs.

What benefits and ROI should users consider in reviews?

Improved Security Posture: Enhanced monitoring capabilities reduce risk exposure.
Operational Efficiency: Automation cuts down manual efforts and saves time.
Increased Visibility: Comprehensive insights into activity improve decision-making.
Cost Management: Helps allocate resources more effectively, potentially reducing costs.

i-SIEM [EOL] is particularly beneficial in industries such as finance and healthcare where data security is paramount. Its ability to integrate with existing infrastructure allows seamless adoption, offering enhanced security without disrupting operations. Industries handling sensitive information value its advanced capabilities to safeguard data integrity.

LevelBlue

Microsoft Sentinel offers cloud-native SIEM and SOAR capabilities with AI-powered threat detection, automated responses, and integration with Microsoft products. It is designed for comprehensive threat management with flexible deployment and scalability.

Microsoft Sentinel provides centralized management of cloud-based security monitoring and incident detection. Leveraging AI capabilities, it enhances threat intelligence and automation, allowing users to streamline security operations across cloud and on-premises systems. Microsoft Sentinel efficiently aggregates logs, correlates security events from multiple sources, and integrates seamlessly with Microsoft security offerings such as Defender. While its flexible deployment options and robust automation through playbooks are advantageous, users may encounter challenges with integration outside of Microsoft products, potential log ingestion delays, and a complex query language. The platform would benefit from enhanced speed, a simplified interface, improved query performance, and stronger documentation support.

What are the most important features of Microsoft Sentinel?

Cloud-native SIEM and SOAR: Enables security event management and orchestration in a cloud environment.
AI-powered threat detection: Utilizes artificial intelligence for identifying potential security threats.
Automated response playbooks: Automates routine responses to improve efficiency.
Data ingestion from multiple sources: Integrates with diverse data inputs for comprehensive visibility.
Integration with Microsoft products: Seamless collaboration with Microsoft security tools.

What benefits and ROI should users consider?

Enhanced threat visibility: Improves detection of security threats in various environments.
Reduced manual tasks: Automates processes to lessen human workload.
Scalable deployment: Offers flexibility for growing organizational requirements.
Centralized management: Simplifies oversight and management of threat detection and response.
Improved response times: Accelerates incident handling to minimize potential damage.

In specific industries, Microsoft Sentinel is utilized for its capability to monitor cloud-based workloads and detect incidents effectively. Users in healthcare, finance, and retail adopt it for its strong AI-driven threat detection and its ability to integrate with existing Microsoft solutions, ensuring high-level security operations and compliance with industry standards.

Microsoft

Sample Customers

University of Oklahoma, Donnelley

Microsoft Sentinel is trusted by companies of all sizes including ABM, ASOS, Uniper, First West Credit Union, Avanade, and more.

Buyer's Guide

Security Information and Event Management (SIEM)

September 2026

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