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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)
38th
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
7.1
Number of Reviews
97
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (1st), Microsoft Security Suite (6th), AI-Powered Cybersecurity Platforms (5th)
 

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Graylog Security is 0.6%, up from 0.3% compared to the previous year. The mindshare of Microsoft Sentinel is 6.8%, down from 8.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

Tony Zafiropoulos - PeerSpot reviewer
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.
Ivan Angelov - PeerSpot reviewer
Threat detection and response capabilities enhance investigation processes
My security team has been using Microsoft Sentinel for around two years. We also have Bastion and SolarWinds as part of our monitoring tools. We use a three-way tool, alongside Microsoft Sentinel, in our environment The most valuable features for us include threat collection, threat detection,…

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."
"It is easy to implement (turn on) - does need a skilled analyst to develop queries and playbooks."
"I like the unified security console. You can close incidents using Sentinel in all other Microsoft Security portals, when it comes to incident response."
"Microsoft Sentinel has improved cost efficiency, which is one of the key areas we're able to win business against the ability to have threat intelligence."
"The pricing of the product is excellent."
"The log analysis is excellent; it can predict what can or will happen regarding use patterns and vulnerabilities."
"Microsoft Sentinel's ability to correlate data from multiple sources has improved our capability significantly."
"The part that was very unexpected was Sentinel's ability to integrate with Azure Lighthouse, which, as a managed services solution provider, gives us the ability to also manage our customers' Sentinel environments or Sentinel workspaces. It is a big plus for us. With its integration with Lighthouse, we get the ability to monitor multiple workspaces from one portal. A lot of the Microsoft Sentinel workbooks already integrate with that capability, and we save countless amounts of money by simply being able to almost immediately realize multitenant capabilities. That alone is a big plus for us."
"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."
 

Cons

"Graylog Security needs to incorporate security scorecards."
"Microsoft Sentinel is relatively expensive, and its cost should be improved."
"Microsoft Sentinel should provide an alternative query language to KQL for users who lack KQL expertise."
"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."
"I believe one of the challenges I encountered was the absence of live training sessions, even with the option to pay for them."
"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."
"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."
"The following would be a challenge for any product in the market, but we have some in-house apps in our environment... our apps were built with different parameters and the APIs for them are not present in Sentinel. We are working with Microsoft to build those custom APIs that we require. That is currently in progress."
"Sentinel still has some anomalies. For example, sometimes when we write a query for log analysis with KQL, it doesn't give us the data in a proper way... Also, the fields or columns could be improved. Sometimes, it is not giving the desired results and there is a blank field."
 

Pricing and Cost Advice

"I rate the tool's pricing a one out of ten."
"It is kind of like a sliding scale. There are different tiers of pricing that go from $100 per day up to $3,500 per day. So, it just kind of depends on how much data is being stored. There can be additional costs to the standard license other than the additional data. It just kind of depends on what other services you're spinning up in Azure, or if you're using something like Azure log analytics."
"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."
"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."
"We only pay for the amount of data we bring in, which is fair."
"The pricing is reasonable, and we think Sentinel is worth what we pay for it."
"Sentinel is costly."
"There are no additional costs other than the initial costs of Sentinel."
"I am not involved on the financial side, but from an enterprise-wide use perspective, I think the price is good enough."
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Top Industries

By visitors reading reviews
Computer Software Company
21%
Educational Organization
9%
Retailer
7%
Construction Company
7%
Computer Software Company
16%
Financial Services Firm
10%
Manufacturing Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Graylog Security?
The tool aggregates logs. We can see the logs in one place.
What needs improvement with Graylog Security?
Graylog Security needs to incorporate security scorecards.
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 2025.
860,632 professionals have used our research since 2012.