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IBM Security QRadar vs Sentinel vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.5
IBM Security QRadar is praised for efficiency, affordability, and high ROI, acting as essential protection against security threats.
Sentiment score
7.5
Sentinel enhanced efficiency, resource allocation, productivity, and financial gains with a user-friendly interface and robust functionality.
Sentiment score
7.2
Splunk Enterprise Security enhances visibility, streamlines operations, and supports real-time decisions, improving efficiency and security in large-scale environments.
Investing this amount was very much worth it for my organization.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Splunk's cost is justified for large environments with extensive assets.
 

Customer Service

Sentiment score
6.1
IBM Security QRadar's customer service is excellent but has inconsistent support quality and response times varying by region.
Sentiment score
8.0
Micro Focus technical support varies from needing multiple emails to being very good, while Microsoft's support is generally effective.
Sentiment score
6.7
Splunk Enterprise Security support is mixed: knowledgeable at higher levels but variable with first-tier responses, praised online.
They assist with advanced issues, such as hardware or other problems, that are not part of standard operations.
The problem escalates through level one to level three, and then the process starts over with Novo again.
I received very good support, possibly due to a good relationship with IBM.
If you want to write your own correlation rules, it is very difficult to do, and you need Splunk's support to write new correlation rules for the SIEM tool.
I have sought assistance from Splunk Enterprise Security support in the past, particularly during deployment, and they provide friendly and effective help.
The technical support for Splunk met my expectations.
 

Scalability Issues

Sentiment score
7.5
IBM Security QRadar is renowned for its scalability, smoothly managing large loads with hardware integration and license upgrades.
Sentiment score
7.5
Sentinel's high scalability, cost-effectiveness, and seamless cloud integration make it popular among large enterprises, educational institutions, and SMBs.
Sentiment score
7.7
Splunk Enterprise Security is scalable and effective for large deployments, though costs and planning are essential considerations.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
It is easy to scale.
I find it easy to scale Splunk Enterprise Security for our environment.
 

Stability Issues

Sentiment score
7.6
IBM Security QRadar is stable with proper deployment, though some users face issues from misconfigurations or high log volumes.
Sentiment score
8.5
Sentinel is highly stable and reliable, supporting 5,000 events per second, but can experience occasional region-specific outages during fixes.
Sentiment score
7.9
Splunk Enterprise Security is reliable and adaptable, handling large data volumes with minimal downtime and robust performance.
I think QRadar is stable and currently satisfies my needs.
The product has been stable so far.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
It is very stable.
 

Room For Improvement

IBM Security QRadar requires enhanced UI, integration, and AI, as it's complex, costly, and has suboptimal support and dashboard features.
Sentinel requires enhancements in scripting, integration, security, user interface, customization, vendor support, and reducing region-specific outages.
Splunk Enterprise Security needs improved setup, GUI, user control, pricing, machine learning, and intuitive dashboards for better accessibility.
We receive logs from different types of devices and need a way to correlate them effectively.
If AI-related support can suggest rules and integrate with existing security devices like MD, IPS, this SIM can create more relevant rules.
Improving the integration with IBM Server for MetaMask for correlation rules would be beneficial.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel.
Splunk Enterprise Security would benefit from a more robust rule engine to reduce false positives.
 

Setup Cost

IBM Security QRadar is a high-cost SIEM solution ideal for large enterprises, offering strong features and negotiable pricing.
Splunk Enterprise Security is costly but valued for features and scalability, offering significant ROI with careful data management.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
Splunk is priced higher than other solutions.
 

Valuable Features

IBM Security QRadar excels in scalability, integration, real-time threat detection, and supports diverse environments with customizable dashboards and analytics.
Sentinel excels in log monitoring, threat detection, automation, cloud security, and offers a user-friendly interface with advanced analysis tools.
Splunk Enterprise Security enhances threat detection with fast data retrieval, customizable visualizations, and seamless third-party integration for efficient operations.
Recently, I faced an incident, a cyber incident, and it was detected in real time.
IBM is seeking information about IBM QRadar because a part of QRadar, especially in the cloud, has been sold to Palo Alto.
The scenarios we could write regarding the compliance-related issues were quite helpful.
This capability is useful for performance monitoring and issue identification.
They have approximately 50,000 predefined correlation rules.
The Splunk Enterprise Security's threat-hunting capabilities have been particularly useful in later releases.
 

Mindshare comparison

As of April 2025, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Security QRadar is 8.7%, down from 9.7% compared to the previous year. The mindshare of Sentinel is 3.5%, up from 1.5% compared to the previous year. The mindshare of Splunk Enterprise Security is 9.5%, down from 12.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

Md. Shahriar Hussain - PeerSpot reviewer
Real-time incident detection and user-friendly dashboard benefit daily operations
There are many types of AI, and this AI is very limited in SQL and features. There may be potential for improvement. So far, it seems very limited. It shows some good features in the correlation part, but I think there is room for improvement. For instance, when creating rules, it can suggest more rules, reducing the effort needed. If AI-related support can suggest rules and integrate with existing security devices like MD, IPS, this SIM can create more relevant rules. Sometimes logs I receive don't mean anything, and I need technical stakeholders to share or forward logs, but these are sometimes inadequate. Keywords can help identify insufficient logs. I often lack time to verify logs. Sharing false positive results could be reduced to help my team.
JaideepSingh - PeerSpot reviewer
An automated solution that helped me detect threats in less than half the time it used to take
Sentinel gave us logs to tell us what's going right and wrong in your environment so we could secure the network. We also got multiple kinds of logs. By running some queries from the logs, we could find and fix the anomalies in the environment. Sentinel's threat visibility was great at telling us if we had something going on in our environment. We had to set up alerts in our environment based on the logs. If we had the right alerts set up, we got notified about threats and where security was lacking, so we could also take care of that. Sentinel's threat intelligence helped us prepare and take proactive steps for potential threats before they hit. Having preparation before a threat has helped our security operations. When I was using it, I used to keep going into my dashboards and looking for any threats on a weekly basis, or maybe two or three times a week. Based on that, we would recommend certain changes to the server and infrastructure teams to block or allow some ports. Sentinel's threat intelligence helped plan security against risks.
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.
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Comparison Review

VS
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Educational Organization
24%
Computer Software Company
14%
Financial Services Firm
10%
Government
6%
Computer Software Company
14%
Financial Services Firm
10%
Government
7%
Manufacturing Company
6%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What are the biggest differences between Securonix UEBA, Exabeam, and IBM QRadar?
It mostly depends on your use-cases and environment. Exabeam and Securonix have a stronger UEBA feature set, friendli...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is a...
What do you like most about NetIQ Sentinel?
The solution lets us get all the logs properly and regularly monitor customer infrastructure.
What needs improvement with NetIQ Sentinel?
There are still a few vendor-specific devices for which Sentinel needs to work on integration, such as Netskope devic...
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 ingest...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitor...
What do you like most about Splunk?
There are a lot of third-party applications that can be installed.
 

Also Known As

IBM QRadar, QRadar SIEM, QRadar UBA, QRadar on Cloud, IBM QRadar Advisor with Watson
NetIQ Sentinel, Novell SIEM
No data available
 

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
Faysal Bank, GaVI, Handelsbanken, ISC Mªnster, Lambeth Council, Swisscard, The Municipality of Siena, Tukes, University of Dayton, University of the Sunshine Coast
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Splunk, Wazuh, Microsoft and others in Security Information and Event Management (SIEM). Updated: April 2025.
849,190 professionals have used our research since 2012.