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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)
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)
4th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
108
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (2nd), Microsoft Security Suite (6th), AI-Powered Cybersecurity Platforms (6th)
 

Mindshare comparison

As of July 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 3.9%, down from 6.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Microsoft Sentinel3.9%
Graylog Security0.6%
Other95.5%
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

"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
"Sentinel provides a single pane of glass for reviewing logs from disparate sources, making it quicker to get to the critical items and resolve any problem."
"The most valuable features for us include threat collection, threat detection, response, and the knowledge base for investigation."
"In terms of Sentinel, it's a best-in-class solution."
"Overall, per week, Sentinel saves us 40 to 45 hours, per person."
"Microsoft Sentinel helps us understand the areas that we have to improve and provides information on our current coverage."
"Microsoft Sentinel has positively impacted my organization by improving visibility across all security logs, reducing incident response time through automation, and enabling faster threat detection, which has strengthened our overall security posture and reduced the manual workload for the SOC team."
"Azure Sentinel works perfectly in this case because we are using Microsoft resources."
"Investigations are something really remarkable. We can drill down right to the raw logs by running different queries and getting those on the console itself."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"The cost can be a little confusing at first, but the Azure calculator is a great place to start."
"Sentinel's pricing is on the higher side, but you can get a discount if you can predict your usage."
"When it comes to ingesting Azure native log sources, some of the log sources are specific to the subscription, and it is not always very clear."
"Its implementation could be simpler. It is not really simple or straightforward. It is in the middle. Sometimes, connectors are a little bit complex."
"I think the number one area of improvement for Sentinel would be the cost."
"From a client perspective, they'd like to see more cost savings."
"They could use some kind of workbook. There is some limitation doing the editing and creating the workbook."
"The pricing could be improved."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"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."
"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 a bit expensive. If you can figure a way of configuring it to meet your needs, then you can find a way around the cost."
"Microsoft Sentinel is included in our E5 license."
"Cost-wise, Sentinel is based on the volume of information being ingested, so it can be quite pricey. The ability to use strategies to control what data is being ingested is important."
"Pricing is pay-as-you-go with Sentinel, which is good because it all depends on the number of users and the number of devices to which you connect."
"It's costly to maintain and renew."
"The pricing is based on how much you ingest, so it's pretty straightforward. There are no tiers, and you pay for what you use unlike with other types of SIEM solutions that are usually based on tiers."
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Top Industries

By visitors reading reviews
Educational Organization
14%
Comms Service Provider
10%
Construction Company
7%
Outsourcing Company
7%
Financial Services Firm
11%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise24
Large Enterprise46
 

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: June 2026.
907,731 professionals have used our research since 2012.