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Graylog Security vs Microsoft Sentinel comparison

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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)
60th
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)
3rd
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
108
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (3rd), Microsoft Security Suite (5th), AI-Powered Cybersecurity Platforms (5th)
 

Mindshare comparison

As of October 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Graylog Security is 0.6%, up from 0.6% compared to the previous year. The mindshare of Microsoft Sentinel is 3.6%, down from 6.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Microsoft Sentinel3.6%
Graylog Security0.6%
Other95.8%
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 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.

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."
"Sentinel is a full-fledged SIEM and SOAR solution, made to enhance your security posture and entirely centered around enhancing security."
"Microsoft Sentinel saves us time; it has provided us with a very rich automation solution, and we don't need to log in and check for different things, so it saves a lot of time for associates, about 30 to 40 minutes on average per incident."
"It helps to implement connectors for Microsoft solutions, available out of the box and providing real-time integration, including Microsoft 365 Defender (formerly Microsoft Threat Protection) solutions, and Microsoft 365 sources, including Office 365, Azure AD, Microsoft Defender for Identity (formerly Azure ATP), and Microsoft Defender for Cloud Apps, and more."
"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."
"Microsoft Sentinel has made it easier for us to sell SOC-as-a-Service to, more or less, any customer and not just the big ones."
"We have no complaints about the features or functionality."
"It's a great product."
"One of the most valuable features of Microsoft Sentinel is that it's cloud-based."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"Sentinel should be improved with more connectors. At the moment, it only covers a few vendors. If I remember correctly, only 100 products are supported natively in Sentinel, although you can connect them with syslog. But Microsoft should increase the number of native connectors to get logs into Sentinel."
"There is room for improvement in terms of integrations. We have some tools, such as our off-site Meraki firewalls, that have not fully integrated with Sentinel. We lack integration for Syslogs into Sentinel."
"The solution has not saved any money because it is still expensive."
"I would rate Microsoft technical support at five out of 10 because we have to go through a lot of steps before we get to the right technical stakeholder."
"The playbook is a bit difficult and could be improved."
"The interface could be more user-friendly. It''s a small improvement that they could make if they wanted to."
"The data connectors for third-party tools could be improved, as some aren't available in Sentinel. They need to be available in the data connector panel."
"Depending on when Microsoft releases the updates, it can be challenging, but they usually notify us ahead of time."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"We are charged based on the amount of data used, which can become expensive."
"No license is required to make use of Sentinel, but you need to buy products to get the data. In general, the price of those products is comparable to similar products."
"It is a consumption-based license model. bands at 100, 200, 400 GB per day etc. Azure Sentinel Pricing | Microsoft Azure"
"In comparison to other security solutions, Microsoft Sentinel offers a reasonable price for the features included."
"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."
"Sentinel is expensive relative to other products of the class, so it often isn't affordable for small-scale businesses. However, considering the solution has more extensive capabilities than others, the price is not so high. Pricing is based on GBs of ingested daily data, either by a pay-as-you-go or subscription model."
"The product is costly compared to Splunk."
"We must have saved some money with this product. It is a cloud-native product, and the ingestion is per GB. Every GB costs a certain amount of money. That is how the license of Microsoft Sentinel works."
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Top Industries

By visitors reading reviews
Educational Organization
13%
Comms Service Provider
9%
Retailer
8%
Outsourcing Company
8%
Manufacturing Company
10%
Financial Services Firm
10%
Computer Software Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise23
Large Enterprise47
 

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 ...
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: September 2026.
914,938 professionals have used our research since 2012.