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

"The tool aggregates logs. We can see the logs in one place."
"We use the solution to collect logs."
"Sentinel also enables you to ingest data from your entire ecosystem and not just from the Microsoft ecosystem. It can receive data from third-party vendors' products such firewalls, network devices, and antivirus solutions. It's not only a Microsoft solution, it's for everything."
"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."
"Microsoft Sentinel stands out among SIEM tools for its user-friendliness and powerful built-in query language."
"It's pretty powerful and its performance is pretty good."
"Sentinel is a Microsoft product, so they provide very robust use cases and analytic groups, which are very beneficial for the security team. I also like the ability to integrate data sources into the software for on-premise and cloud-based solutions."
"In terms of Sentinel, it's a best-in-class solution."
"If you know how to do KQL (kusto query language) queries, which are how you query the log data inside Sentinel, the information is pretty rich. You can get down to a good level of detail regarding event information or notifications."
"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."
"If I see an alert and I want to drill down and get more details about the alert, it's not just one click. In other SIEM tools, you just have to click the IP address of the entity and they give you the complete picture. In Sentinel, you have to write queries or use saved queries to get details."
"From a client perspective, they'd like to see more cost savings."
"Improvement-wise, I would like to see more integration with third-party solutions or old-school antivirus products that have some kind of logging capability. I wouldn't mind having that exposed within Sentinel. We do have situations where certain companies have bought licensing or have made an investment in a product, and that product will be there for the next two or three years. To be able to view information from those legacy products would be great. We can then better leverage the Sentinel solution and its capabilities."
"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."
"With one of my clients, we deployed the solution. We estimated that the ingestion would be up to this particular mark, but that ingestion somehow got way beyond that. Within a month to a month and a half, they got charged 35,000 CAD, which was a huge turn off for us."
"However, I do have challenges with KQL, and I believe they could work on making the language more user-friendly."
"Microsoft Sentinel is definitely costly. If we factor in the cost of other services, MCAS, MDI, and Microsoft Defender for Cloud, it gets seriously costly, to the extent that we cannot enable it across the organization."
"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 am not involved on the financial side, but from an enterprise-wide use perspective, I think the price is good enough."
"In comparison to other security solutions, Microsoft Sentinel offers a reasonable price for the features included."
"Microsoft Sentinel requires an E5 license."
"Sentinel is fairly priced and pretty cost-effective."
"The pay-as-you-go model is beneficial to customers."
"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."
"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."
"I am just paying for the log space with Azure Sentinel. It costs us about $2,000 a month. Most of the logs are free. We are only paying money for Azure Firewall logs because email logs or Azure AD logs are free to use for us."
report
Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
919,809 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Educational Organization
12%
Comms Service Provider
9%
Healthcare Company
8%
Retailer
8%
Manufacturing Company
11%
Financial Services Firm
10%
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.
919,809 professionals have used our research since 2012.