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IBM Security QRadar vs Splunk Enterprise Security vs Sumo Logic 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 cost-effective, enhancing security while reducing manpower, with positive feedback on financial returns.
Sentiment score
7.2
Splunk Enterprise Security improves efficiency, automates tasks, enhances visibility, and offers customization for better threat detection and resource allocation.
Sentiment score
7.6
Sumo Logic Security improves troubleshooting and operational efficiency, with users finding ROI generally justifies its continued use.
With SOAR, the workflow takes one minute or less to complete the analysis.
Investing this amount was very much worth it for my organization.
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Customers see the value in investing in this solution, particularly when it helps resolve issues quickly, turning a potential 20-hour response into one hour.
 

Customer Service

Sentiment score
6.1
IBM Security QRadar support is praised for expertise but criticized for slow response times and inconsistent service quality.
Sentiment score
6.7
Splunk Enterprise Security support is knowledgeable and generally effective, but response times and expertise levels could improve.
Sentiment score
7.4
Sumo Logic Security's support is responsive and helpful but can occasionally delay up to 48 hours; no phone support mentioned.
They assist with advanced issues, such as hardware or other problems, that are not part of standard operations.
Support needs to understand the issue first, then escalate it to the engineering team.
The problem escalates through level one to level three, and then the process starts over with Novo again.
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.
They try to close issues as soon as possible, often just offering documentation links.
They are responsive and effectively resolve issues.
They have a response time of forty-eight hours, which is not instant support.
 

Scalability Issues

Sentiment score
7.4
IBM Security QRadar is highly regarded for its scalability, with easy vertical and horizontal expansion and seamless cloud deployment.
Sentiment score
7.7
Splunk Enterprise Security offers versatile scalability, handling large data volumes effectively, with cost considerations for on-premises deployments.
Sentiment score
8.1
Sumo Logic Security offers scalable, cloud-based solutions praised for integration, performance, and flexibility across diverse infrastructures, with positive user feedback.
For EPS license, if you increase or exceed the EPS license, you cannot receive events.
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.
It's big in a Central European context, and small from a Splunk North American context.
The tool has high scalability because everything is based in the cloud.
 

Stability Issues

Sentiment score
7.6
IBM Security QRadar is reliable but stability depends on correct deployment, capacity, and system resources, with minor update issues.
Sentiment score
7.9
Splunk Enterprise Security is stable and reliable, though performance challenges occur with high data volumes and complex queries.
Sentiment score
8.1
Sumo Logic Security is highly praised for stability, reliability, and maintaining performance under load, with minimal latency issues.
I think QRadar is stable and currently satisfies my needs.
The product has been stable so far.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
I would rate it a ten out of ten for stability.
If there are many records, the system may stop or the UI may become unresponsive.
 

Room For Improvement

IBM Security QRadar needs UI improvement, better integration, enhanced detection, streamlined operations, and customization for cost-effective functionality.
Splunk Enterprise Security needs interface and integration improvements, streamlined setup, better training, cost adjustments, and enhanced AI features.
Sumo Logic Security faces challenges in performance, automation, support, API integration, and high costs, needing improvements across multiple areas.
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.
IBM Security QRadar does not support Canvas, so we had to create custom scripts and workarounds to pull logs from Canvas.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
The correlation rules and log mapping are not as mature compared to other SIM tools like Splunk.
This is crucial to sell to the government and financial sectors as they require data retention within each country.
 

Setup Cost

IBM Security QRadar is costly but efficient, offering flexible pricing, EPS discounts, and potential cost savings with negotiation.
Splunk Enterprise Security, seen as costly, offers extensive features, requiring careful data management to optimize expenses.
Sumo Logic Security users find AWS Marketplace simplifies billing and offers a competitive, cost-effective pricing structure despite scalability concerns.
Splunk is more expensive than IBM Security QRadar.
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.
This makes it more cost-effective because other solutions often include a third element in their pricing.
 

Valuable Features

IBM Security QRadar excels in log management, scalability, compliance, and integration, enhancing comprehensive security management with ease.
Splunk Enterprise Security offers powerful data management, flexible search, seamless integration, and advanced threat detection tools for efficiency.
Sumo Logic Security offers robust threat intelligence, real-time observability, and seamless integrations, making it essential for SecOps teams.
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.
We have FortiSOAR and IBM Resilient for IBM Security QRadar orchestration.
This capability is useful for performance monitoring and issue identification.
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
If we cannot find the data in other tools, like email security or NDR, we can fetch those logs in the Log Analytics platform of Sumo Logic.
Sumo Logic Security offers a single dashboard and customization, which are the most valuable features.
 

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Security QRadar is 7.7%, down from 9.7% compared to the previous year. The mindshare of Splunk Enterprise Security is 9.4%, down from 12.1% compared to the previous year. The mindshare of Sumo Logic Security is 1.1%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

Mahmoud Younes - PeerSpot reviewer
Reliable installation and diverse use cases provide strong value
IBM Security QRadar has some areas for improvement. We have missed some DSM components. We need to customize logs where there is no DSM or connector for certain products. We can integrate but we have missed the DSM, which is the connector to pass logs coming from different applications. For example, with a university customer, we tried onboarding Canvas service. IBM Security QRadar does not support Canvas, so we had to create custom scripts and workarounds to pull logs from Canvas.
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.
WilsonAitan - PeerSpot reviewer
Offers a single dashboard with customizable features and a cost-effective pricing structure
Sumo Logic Security offers a single dashboard and customization, which are the most valuable features. Additionally, it has a cost-effective structure because it is based on data storage and the number of scans, rather than uploading data. This cost model impacts the customers positively by offering a more straightforward pricing structure.
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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
Computer Software Company
16%
Financial Services Firm
12%
Government
7%
Manufacturing Company
7%
Financial Services Firm
14%
Computer Software Company
14%
Manufacturing Company
8%
Government
7%
Computer Software Company
14%
Financial Services Firm
12%
Manufacturing Company
7%
Educational Organization
6%
 

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 is your experience regarding pricing and costs for IBM Security QRadar?
When comparing with Splunk, IBM Security QRadar's cost is reasonable. Splunk is more expensive than IBM Security QRadar.
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.
What do you like most about Sumo Logic Security?
Sumo Logic Security is a good solution for searching the logs and identifying the issues.
What is your experience regarding pricing and costs for Sumo Logic Security?
The pricing structure for Sumo Logic Security is based on two elements: data storage and the number of scans. This ma...
What needs improvement with Sumo Logic Security?
In terms of improvement, feedback indicates there is a need for a local data center in my country. This is crucial to...
 

Also Known As

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

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
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Find out what your peers are saying about Splunk, Wazuh, Microsoft and others in Security Information and Event Management (SIEM). Updated: June 2025.
860,825 professionals have used our research since 2012.