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Graylog Security vs Microsoft Sentinel comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

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

Graylog Security
Ranking in Security Information and Event Management (SIEM)
46th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Microsoft Sentinel
Ranking in Security Information and Event Management (SIEM)
4th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
109
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (1st), Microsoft Security Suite (6th), AI-Powered Cybersecurity Platforms (6th)
 

Mindshare comparison

As of April 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Graylog Security is 0.6%, up from 0.5% compared to the previous year. The mindshare of Microsoft Sentinel is 4.2%, down from 7.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Microsoft Sentinel4.2%
Graylog Security0.6%
Other95.2%
Security Information and Event Management (SIEM)
 

Featured Reviews

Tony Zafiropoulos - PeerSpot reviewer
Owner/ Chief Engineer at Fixvirus.com
Aggregates logs in one place and helps to review data points
We tried Graylog Security, starting with their inexpensive open-source version. We tested it out and continued using it for a while. As for the main differences between Graylog Security and other vendors, some users might prefer cloud-based platforms over on-premises solutions. It isn't inherently cloud-native, but that might not matter much for some.
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.

Quotes from Members

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

Pros

"The tool aggregates logs. We can see the logs in one place."
"We use the solution to collect logs."
"We have seen at least a 60% increase in efficiency with Microsoft Sentinel and the ability to reduce the MTTD down to under five minutes and MTTR down to under fifteen."
"Overall, per week, Sentinel saves us 40 to 45 hours, per person."
"After two years, the return on investment has been absolutely staggering because by deploying Sentinel, we pretty much have a 24/7 AI that's looking at signals, metrics, and alerts, making decisions, applying automated actions, and saving us from having to double the amount of staff we have now with about a 40% reduction in costs."
"If you have cloud-based workloads and different cloud or cloud lookalike services that require security data, or if you are looking for SOAR functionalities, then it's a no brainer."
"Overall, I find Sentinel to be a really strong solution."
"Azure Sentinel is actually quite handy, and very adaptive to the market trends."
"We didn't have anything similar. So, it really provides value from the incidents and automation point of view. The overview of the security fabric is most valuable."
"The SOAR playbooks are Sentinel's most valuable feature. It gives you a unified toolset for detecting, investigating, and responding to incidents. That's what clearly differentiates Sentinels from its competitors. It's cloud-native, offering end-to-end coverage with more than 120 connectors. All types of data logs can be poured into the system so analysis can happen. That end-to-end visibility gives it the advantage."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"Pricing is based on data ingestion, which I feel can be slightly costly if logs are not optimized."
"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."
"If Azure Sentinel had the ability to ingest Azure services from different tenants into another tenant that was hosting Azure Sentinel, and not lose any metadata, that would be a huge benefit to a lot of companies."
"They need to have a streamlined process for updating them in the tool and knowing when things are updated and knowing when there are new detections available from Microsoft."
"It would be nice to be able to leverage more AI to handle more data and recovery aspects in the future."
"Sentinel still has some anomalies. For example, sometimes when we write a query for log analysis with KQL, it doesn't give us the data in a proper way."
"Not all information shows up in Sentinel. Sometimes there are items provided in 365 and if you looked in Sentinel you would not see them and therefore think they do not exist. There can be discrepancies between Microsoft tools."
"Multi-tenancy, in my opinion, needs to be improved. I believe it can do better as a managed service provider."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"Microsoft Sentinel is expensive."
"The pay-as-you-go model is beneficial to customers."
"Microsoft can enhance the licensing side. I feel there is confusion sometimes... They should have a single license in which we have the opportunity to use the EDR or CASB solution."
"Some of the licensing models can be a little bit difficult to understand and confusing at times, but overall it's a reasonable licensing model compared to some other SIEMs that charge you a lot per data."
"Good monthly operational cost model for the detection and response outcomes delivered, M365 logs don't count toward the limits which is a good benefit."
"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."
"Sentinel is costly."
"Currently, given our use case, the cost of Sentinel is justified, but it is expensive."
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Top Industries

By visitors reading reviews
Educational Organization
15%
Comms Service Provider
8%
Retailer
8%
Construction Company
7%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business43
Midsize Enterprise22
Large Enterprise46
 

Questions from the Community

What do you like most about Graylog Security?
The tool aggregates logs. We can see the logs in one place.
What is your primary use case for Graylog Security?
I feed different data points to the tool and review them.
What advice do you have for others considering Graylog Security?
I rate the overall product an eight out of ten. It's a good option for getting started.
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

No data available
Azure Sentinel
 

Overview

 

Sample Customers

Information Not Available
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 Graylog Security vs. Microsoft Sentinel and other solutions. Updated: April 2026.
890,124 professionals have used our research since 2012.