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)
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

"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
"The machine learning and artificial intelligence on offer are great."
"Having your logs put all in one place with machine learning working on those logs is a good feature. I don't need to start thinking, "Where are my logs?" My logs are in a centralized repository, like Log Analytics, which is why you can't use Sentinel without Log Analytics. Having all those logs in one place is an advantage."
"The scalability is great. You can put unlimited logs in, as long as you can pay for it. There are commitment tiers, up to six terabytes per day, which is nowhere close to what any one of our customers is running."
"By implementing the SIEM along with Security Center, we have improved security to a mature level, and we are able to meet the compliance reporting and client requirements for security within the organization."
"It enabled customers that previously found it difficult to justify the cost of a security-analytics platform to actually deploy one without enormous upfront costs."
"In terms of Sentinel, it's a best-in-class solution."
"Microsoft Sentinel comes preloaded with templates for teaching and analytics rules."
"The analytic rule is the most valuable feature."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"With non-Microsoft products, there are definitely integration issues. Exporting the logs is very difficult, and the API calls are not being generated frequently from the Microsoft end."
"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."
"The performance could be improved. If I create 15 to 20 lines for a single-use case in KQL, sometimes it takes more time to execute. If I create use cases within a certain timeline, the result will show in .01 seconds. A complex query takes more time to get results."
"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."
"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."
"They need to work with other security vendors. For example, we replaced our email gateway with Symantec, but we couldn't collect these logs with Azure Sentinel. Instead of collecting these logs with Azure Sentinel, we are collecting them on Qradar. We couldn't do it with Sentinel, which is a problem for us."
"Add more out-of-the-box connectors with other SaaS platforms/applications."
"Professional support is not that great. Often, I'd rather not involve them."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"I have had mixed feedback. At one point, I heard a client say that it sometimes seems more expensive. Most of the clients are on Office 365 or M365, and they are forced to take Azure SIEM because of the integration."
"It is consumption-based pricing. It is an affordable solution."
"Sentinel is fairly priced and pretty cost-effective."
"I am not involved on the financial side, but from an enterprise-wide use perspective, I think the price is good enough."
"Sentinel is costly."
"I'm not happy with the pricing on the integration with Defender for Endpoint. Defender for Endpoint is log-rich. There is a lot of information coming through, and it is needed information. The price point at which you ingest those logs has made a lot of my customers make the decision to leave that within the Defender stack."
"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 is a consumption-based license model. bands at 100, 200, 400 GB per day etc. Azure Sentinel Pricing | Microsoft Azure"
report
Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
918,957 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%
Manufacturing Company
11%
Financial Services Firm
11%
Computer Software Company
7%
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.
918,957 professionals have used our research since 2012.