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IBM Watson for Cyber Security vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 13, 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)
57th
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
7.5
Number of Reviews
323
Ranking in other categories
Log Management (2nd), IT Operations Analytics (1st)
 

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Watson for Cyber Security is 0.3%, up from 0.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 9.4%, down from 12.1% 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

"The most valuable feature of this product is innovation, where the research and upgrading of technology never ends."
"The customer support is very good."
"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."
"IBM Watson for Cyber Security is very stable."
"Ease of correlation, creating correlation searches are easy and you can combine multiple sources with little effort"
"it can explain to management about what kind of traffic is visiting the network. It can also explain other traffic coming in and out, along with protecting against malware."
"Support is quick and competent."
"Splunk stands out for its extensive application integrations."
"Splunk Enterprise Security is amazing."
"The ability to rapidly diagnose problems in production and non-production, across hundreds of log files, is the most valuable feature."
"With good domain knowledge, one can build almost anything. If you throw in Alert Manager or an integration with ServiceNow. Then, you have your own SIEM"
"The incident review in Splunk Enterprise Security seems to be the most helpful feature."
 

Cons

"In the future, I would like to see threat intelligence included."
"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."
"The Enterprise Security app could be improved. We have had trouble with it working from the first day."
"It needs more thoroughly tested releases. Every new big version (6, 7, etc.) has had so many bugs that it makes me wary of customers upgrading right away."
"The analytics of Splunk could be improved."
"The licensing price is high and has room for improvement."
"Data retention can be better. If we want to look at the data for five months or six months, that is not available to us. We only have a history of 20 or 30 days. After that, the information gets lost. That is a drawback."
"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."
"Its pricing model and integration with third-party services can be improved. We had faced an issue with integration. The alerting feature is currently not available with Splunk, but it is definitely available with Datadog and PagerDuty. They should include this feature. A few dashboards in Splunk look quite old and are not that modern. They aren't bad, but improving these dashboards will definitely make Splunk more attractive and usable. I read in a few blog posts that there were a few security incidents related to Splunk agents. So, it can be made more secure."
"Splunk could enhance its offerings by incorporating modules for network detection and response and fraud management, along with improving its threat intelligence management capabilities."
 

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."
"Price-wise, if you compare QRadar to Splunk for SIEM functionality then they are in the same range but when you integrate SOAR with these solutions, Splunk takes the lead and is more competitive."
"It is a pretty high cost solution, but if your organization has the funds, it can bring many benefits."
"Splunk licensing model might seem expensive but with all the gain in functionalities you will have compared to traditional SIEM solutions I think it’s worth the price."
"The licensing is good, but the pricing absolutely needs some work. It is very high."
"Splunk is costly but it’s worth it due to the high-end features."
"Splunk is really expensive compared to all the other tools on the market, including Microsoft Sentinel."
"It is a bit costly."
"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."
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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
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
 

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: July 2025.
864,053 professionals have used our research since 2012.