No more typing reviews! Try our Samantha, our new voice AI agent.

Graylog Security vs Microsoft Sentinel comparison

Why PeerSpot?
 

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)
59th
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 September 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 6.7% 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."
"The analytics has a lot of advantages because there are 300 default use cases for rules and we can modify them per our environment. We can create other rules as well. Analytics is a useful feature."
"Log aggregation and data connectors are the most valuable features."
"We didn't have anything similar, so it really provides value from the incidents and automation point of view, and the overview of the security fabric is most valuable."
"For those who want to adopt Sentinel, I'd advise that it's a really one-stop solution for all the security needs."
"The UI-based analytics are excellent."
"Some of the best features of Microsoft Sentinel are that it is cloud-based, which from a CapEx perspective saves clients money in procuring on-premises infrastructure."
"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."
"We’ve got process improvement that's happened across multiple different fronts within the organization, within our IT organization based on this tool being in place."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"Technical support doesn't understand the features well enough. Their solutions and response time aren't very good."
"They should just add more and more out-of-the-box connectors. It is quite a new product, and it has a lot of connectors, and even more would be good."
"The reporting could be more structured."
"There are certain delays. For example, if an alert has been rated on Microsoft Defender for Endpoint, it might take up to an hour for that alert to reach Sentinel. This should ideally take no more than one or two seconds."
"They only classify alerts into three categories: high, medium, and low. So, from the user's point of view, having another critical category would be awesome."
"We are not seeing cost savings right now, because using Azure Sentinel tools has increased our costs."
"It could have a better API to be able to automate many things more extensively and get more extensive data and more expensive deployment possibilities. It can gain some points on the automation part and the integration part. The API is very limited, and I would like to see it extended a bit more."
"If Sentinel had a graphical user interface, it would be easier to use. I would also like it to be more customizable."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"The are two native advantages for customers that use M365 Security and Sentinel. The first advantage is that the log or security-event ingestion into Sentinel is free. Cost-wise, they're saving a lot and that is a major advantage."
"Currently, given our use case, the cost of Sentinel is justified, but it is expensive."
"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."
"The pay-as-you-go model is beneficial to customers."
"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."
"Microsoft is costlier. Some organizations may not be able to afford the cost of Sentinel orchestration and the Log Analytics workspace. The transaction hosting cost is also a little bit on the high side, compared to AWS and GCP."
"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."
"From a cost perspective, there are some additional charges in addition to the licensing."
report
Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
913,076 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Educational Organization
13%
Comms Service Provider
9%
Retailer
8%
Outsourcing Company
8%
Financial Services Firm
11%
Manufacturing Company
10%
Computer Software Company
9%
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

Ask a question
Earn 20 points
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.
913,076 professionals have used our research since 2012.