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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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

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

"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."

"The most valuable feature is the onboarding of the workloads. You can see all that has been onboarded in your account on the dashboards."

"Microsoft is continuously improving this product, and we also have private access where we can see what features are being launched and provide input to them."

"The best feature of Microsoft Sentinel is its ability to unify all dashboards or functions into one modern SecOps dashboard."

"The connectivity and analytics are great."

"Being able to dictate and train efficiently and in a streamlined way is probably the most value proposition we have for something in this category."

"Microsoft Sentinel is cloud native, which is a significant advantage. The data connectors that provide the ability to connect third-party log sources are highly valuable."

"Log aggregation and data connectors are the most valuable features."

"Sentinel pricing is good"

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 experienced some performance problems in the UK and, when we transferred to a different region, we lost some of our workspaces, which was shocking; if Microsoft needs to failover to another region, the customer should be informed because it affects many things."

"It would be good to have some connectors for third-party SIEM solutions. Many customers are struggling with the integration of Azure Sentinel with their on-premise SIEM. Microsoft is changing the log structure many times a year, which can corrupt a custom integration. It would be good to have some connectors developed by Microsoft or supply vendors, but they are not providing such functionality or tools."

"My primary improvement request would be for auxiliary logs, as they represent our biggest need."

"The solution has not saved any money because it is still expensive."

"I would like to be able to monitor applications outside of the Azure Cloud."

"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."

"We've seen delays in getting the logs from third-party solutions and sometimes Microsoft products as well. It would be helpful if Microsoft created a list of the delays. That would make things more transparent for customers."

"The solution could be more user-friendly; some query languages are required to operate it."

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 current licensing is based on the logs that are being ingested on the platform. Most of the SIEM solutions utilize that pricing model, but Microsoft should give us a customization option for controlling the kind of logs that we feed into Microsoft Sentinel. That will be much better. Otherwise, the pricing is a bit higher."

"The combination of the ease of accessibility and the free cost of the service is great. But we buy storage based on our events per second and on how many sources are integrated into the solution."

"The pricing is fair... With a traditional SIEM, you pay a lump sum for licenses. But with Sentinel, it's pay-as-you-go according to the amount of data you inject."

"It's costly to maintain and renew."

"Microsoft Sentinel requires an E5 license."

"Currently, given our use case, the cost of Sentinel is justified, but it is expensive."

"It is priced fairly given the value that you get from the use of the product. The biggest mistake people make with Microsoft Sentinel is not understanding the pricing model and the amount of data that they are going to be running through the tool because you are paying based on the flow. You are paying based on the amount of data that is moving through the tool. People do not plan, and therefore, they get surprised by the cost associated with using the tool. They connect everything because they want to know everything, but connecting everything is very 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."

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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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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