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IBM Watson for Cyber Security vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 5, 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)
55th
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
7.6
Number of Reviews
305
Ranking in other categories
Log Management (2nd), IT Operations Analytics (1st)
 

Mindshare comparison

As of April 2025, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Watson for Cyber Security is 0.2%, down from 0.3% 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

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…
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.

Quotes from Members

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

Pros

"IBM Watson for Cyber Security is very stable."
"The customer support is very good."
"The most valuable feature of this product is innovation, where the research and upgrading of technology never ends."
"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."
"The most valuable features in Splunk are the search function and the ability to run selected session reports. The session reports are important because I can use them to see what is going on in our environment weekly. Additionally, we can use the graph to see how often that particular event is happening."
"Splunk UBA is useful for fraud detection and for detection of APTs, advanced persistent threats."
"The solution allows easy gathering and ingestion of the data."
"It helps us uncover bottlenecks in the network."
"The most valuable feature of Splunk Enterprise Security is the comprehensive logging capabilities it provides."
"The solution's most valuable feature is threat intelligence correlations."
"Capability to expand the functionality through custom code for data inputs, commands, visualization, alerts, and machine learning."
"The client site login is pretty extensible and probably cost-effective."
 

Cons

"The dashboard could improve in IBM Watson for Cyber Security."
"In the future, I would like to see threat intelligence included."
"They need to continue to build the AI capabilities."
"This is an expensive product, so making it more cost-effective would be an improvement."
"Splunk does not build apps. They only go back and validate the apps that somebody has already built. They should have remote consulting support. They have a wonderful solution. They have 24/7 security. Nobody needs to depend on any third party and will therefore just buy Splunk on the cloud."
"Splunk needs to be able to hold more days of data. At the moment it only holds three months of data."
"The product could be cheaper."
"It can be tough to determine if you are getting all of the value out of your investment at times."
"In the next releases, I would like to see more pricing flexibility."
"In the next release, they should include machine learning-based rules that would streamline the process of finding anomalies."
"Over time I will have more requirements and I can foresee the solution could improve the search algorithm to run and output the data faster."
"We were inundated with the amount of alerts and alarms that we could get out of it. It is also a resource hog and we didn't have the resources to support it on-prem so we're taking it offline now."
 

Pricing and Cost Advice

"IBM Watson for Cyber Security is very simple to license and is priced well."
"The price of this solution should be lower, although I understand why IBM charges a premium price."
"It is a bit costly."
"The pricing is a little bit on the higher side, but looking at what Splunk provides us, it is reasonable."
"Splunk is not a cheap solution and the license is billed annually."
"The pricing depends on the bandwidth of an organization and is good compared to some SIEM tools. IBM, for example, is quite costly. But Microsoft Sentinel is notably cheaper."
"I believe that Splunk Enterprise Security is worth the price, but it is expensive."
"It can be expensive, especially the licensing costs. However, there is added value in what it can do, not just log aggregation."
"It is possible to use a developer's license, which is up to 10GB per day of volume traffic, which is usually enough for most use cases."
"Our customers often complain that the price of Splunk is too high."
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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
Manufacturing Company
17%
Computer Software Company
17%
Financial Services Firm
17%
Media Company
8%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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: March 2025.
845,040 professionals have used our research since 2012.