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IBM Watson for Cyber Security vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 2025

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

IBM Watson for Cyber Security
Ranking in Security Information and Event Management (SIEM)
58th
Average Rating
8.0
Number of Reviews
4
Ranking in other categories
No ranking in other categories
Splunk Enterprise Security
Ranking in Security Information and Event Management (SIEM)
1st
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
369
Ranking in other categories
Log Management (2nd), IT Operations Analytics (1st)
 

Mindshare comparison

As of November 2025, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Watson for Cyber Security is 0.5%, up from 0.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 8.7%, down from 10.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security8.7%
IBM Watson for Cyber Security0.5%
Other90.8%
Security Information and Event Management (SIEM)
 

Featured Reviews

Elena Stefanovska - PeerSpot reviewer
Knowledgeable support, reliable, and useful compliance policies
IBM Watson for Cyber Security can be deployed on-premise or in the cloud and it is used as a SIEM solution The most valuable features of IBM Watson for Cyber Security are ease of use and out-of-the-box reports and compliance policies. Additionally, if there are aspects that are missing IBM add…
Kyle Vernham - PeerSpot reviewer
Built-in searches and unified data access streamline alert investigation and boosts analyst efficiency
The two features I appreciate the most in Splunk Enterprise Security are the built-in searches, which have been very easy for us to get started with right out of the box, and the fact that it accesses all of our other systems. You can access it as a pane of glass rather than having to search individually. We also have the option to compare our analysts from our service to service. Splunk Enterprise Security helps our SOC team prioritize and investigate high-fidelity alerts more effectively by providing a more in-depth look and the ability to access a lot more of our data. Instead of jumping from several segmented systems, it allows us to have everything brought together in one place. For example, you have to move from our purview to our build system and to Splunk Enterprise Security, and it enables us to streamline that process. The built-in features of Splunk Enterprise Security, which we recently procured, have given us a good starting point and demonstrated the value of the product, providing an easy way to sell it to our company. The ease of getting everything into our purview helps us, and it serves as a good start for the investigation part in one location rather than what we usually have, which is jumping from system to system to system. Splunk Enterprise Security plays a role in our company's strategy to combat insider threats and advanced persistent threats by currently being in its technical test phase. We are still rolling it out, and it should help us find any insider threats based on information that our policy states should not be present in our system. Splunk Enterprise Security's risk-based alerting (RBA) has impacted our alert volume and analyst productivity because we've got many different systems feeding into it. However, it has helped to make it easier for our analysts to go through a set of events rather than 100 alerts. RBA allows us to streamline the process and customize it for our analysts. When it comes to leveraging Splunk Enterprise Security's dashboards and visualizations to communicate security posture to executives, it's pretty straightforward for any type of information. The visualization is easy to understand, but I haven't had any direct conversations with our executives.

Quotes from Members

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

Pros

"The most valuable feature of this product is innovation, where the research and upgrading of technology never ends."
"The customer support is very good."
"IBM Watson for Cyber Security is very stable."
"The most valuable features of IBM Watson for Cyber Security are ease of use and out-of-the-box reports and compliance policies. Additionally, if there are aspects that are missing IBM add them in the next release."
"Integration with the cloud is pretty important and good for us. We found the integration with a lot of tools, not all tools yet, valuable. It does make the transfer of data, log files, and other things easier for us."
"Splunk Enterprise Security gives us a single pane of glass so that we can use just one tool instead of having to use different tools."
"It helps us uncover bottlenecks in the network."
"I appreciate the integrations with the SOAR architectures and the expandability that can be used throughout the entire ecosystem of Splunk Enterprise Security."
"The feature that we use the most is the correlation search engine within ES."
"Splunk Enterprise Security helped us with faster detection of threats."
"The most valuable features of Splunk Enterprise Security are the enterprise search bar and the dashboards."
"Splunk Enterprise Security is a very useful application to collect all the logs and also to find out the problems. You can easily create whatever you want by using its features, and it also has the capability to collect from all kinds of different platforms. Splunk Enterprise Security provides me with all the alerts."
 

Cons

"This is an expensive product, so making it more cost-effective would be an improvement."
"The dashboard could improve in IBM Watson for Cyber Security."
"They need to continue to build the AI capabilities."
"In the future, I would like to see threat intelligence included."
"​Not even Splunk's support guy, who came to our firm, could help with defining proper role management.​"
"Splunk Enterprise Security is a wonderful solution, however, the background configuration process could be better as the administration process is very complicated."
"The integration could be a bit better. They charge for certain integrations."
"We can only increase the environment. For instance, with an ES server, we cannot make a cluster of ES. If you have two servers and want to make a cluster of these two servers for ES, that is not possible."
"If you monitor too much, you can lose performance on your systems."
"The incident response dashboard could be more user-friendly."
"It works as intended for us, and we are getting everything that we need out of it. If anything, its initial setup can be improved a bit."
"The threat management part is still lagging. There are some gaps in threat management. Other vendors have built-in threat management systems, but Splunk lacks the threat management component in its portal. The UEBA and everything else is perfect, but it lacks a unified threat intelligence and management part."
 

Pricing and Cost Advice

"The price of this solution should be lower, although I understand why IBM charges a premium price."
"IBM Watson for Cyber Security is very simple to license and is priced well."
"It is a bit costly."
"Regarding the product's pricing, I think it has always been difficult to have a conversation with Splunk."
"Luckily, we come under a large federal agency, and before the pandemic, they signed a large enterprise license agreement. It worked out great and to our advantage because we are a small organization. We got a 300 gig license, and we just did not have the buying power to be able to get products cheaply. Because we all partnered together under the agency umbrella, we were able to get Splunk Enterprise Security, UBA, and ITSI for cheap. This was good considering the fact that some of these premium apps require a minimum number of users, and we do not have the number of people needed to even justify buying it."
"It would be nice if the pricing were cheaper. However, we did purchase it."
"It is expensive. I work for multiple clients. I am working for more than five clients, but most of the clients are switching from Splunk to Sentinel because of the cost. Even though Sentinel is very limited, clients are moving to Sentinel."
"The pricing seems good relative to the other vendors that we have had here. However, they need to find ways to be more flexible with the licensing and be able to deal with situations where we start generating more logs. Maybe having some controls in the Splunk interface to turn it off, so we don't have to change anything in our application."
"This product could use better pricing in general."
"The tool's pricing model is great. You can choose between workloads or volume."
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Comparison Review

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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
No data available
Financial Services Firm
14%
Computer Software Company
14%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business110
Midsize Enterprise50
Large Enterprise257
 

Questions from the Community

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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 asking to miss details that are critical, and ending up a statistic. Also, rememb...
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 ...
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 monitoring information from different sources. Splunk is very good at alerting us if we...
 

Overview

 

Sample Customers

Information Not Available
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 IBM Watson for Cyber Security vs. Splunk Enterprise Security and other solutions. Updated: September 2025.
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