No more typing reviews! Try our Samantha, our new voice AI agent.

Splunk Enterprise Security vs i-SIEM [EOL] comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 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

i-SIEM [EOL]
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Splunk Enterprise Security
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
387
Ranking in other categories
Log Management (1st), Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Featured Reviews

Dannie Combs - PeerSpot reviewer
Senior Vice President and Chief Information Security Officer at Donnelley Financial Solutions
The alert fatigue and false positive rates have just plummeted, which is really exciting.
empow has a few areas of improvement as with any other technology, such as continuing to drive innovation in the dashboard. While we've been extremely impressed with the dashboard's ease of use, flexibility, ability to drill down deeply, and focus very intently on an area of interest, there will always be opportunities to be more innovative and open it up to a wider audience than just the operations group, for example. With reporting, there is always a desire to have custom reporting for every client of empow. Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus.
Sathis-Kumar - PeerSpot reviewer
Senior Manager at Bank of America
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.

Quotes from Members

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

Pros

"As a result of the automation, we are able to manage SIEM with a small security team. I'm in a unique position where we have been growing the security organization quite rapidly over the last three and a half years. But, as a direct result of the empow transition and legacy collection of tools towards the empow platform, we've been able to keep that head count flat. We've been able to redirect a lot of the security team's time away from the wash, rinse, repeat activities of responding to alarms where we have a high degree of confidence that they will be false positives, adjusting the rules accordingly. This can be a bit frustrating for the analyst when they have to spend hours a day dealing with these types of probable false positives. So, it has helped not only us keep our headcount flat relative to the resources necessary to provide the assurances that our executives expect of us for monitoring, but allows our analyst team to spend the majority of their time doing what they love. They are spending their time meaningfully with a higher degree of confidence and enjoying getting into the incident response type activity."
"From a monitoring and incident response perspective, empow is the most valuable asset we have in our toolkit."
"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."
"Incident detection is the positive impact I have seen from Splunk Enterprise Security; it probably saved the company from financial losses because of the early detection of the incidents."
"Positive features include replication capabilities, software development kits, and the architecture."
"The features of Splunk Enterprise Security that I find most valuable include Mission Control, which I really appreciate, the way accelerated data functions, making it really fast to see, the integration with SOAR, which is something really cool and integrates with automated processes, and the way to ingest threat intelligence feeds, which is an amazing feature as well."
"Some of the insights that we have obtained as a part of using Splunk have greatly helped us in increasing our revenue in terms of selling our products."
"The most valuable features in Splunk Enterprise Security are the cluster capabilities."
"The most valuable feature is the incident dashboard, and the extensive use of correlation searches, which isn't available with a standard Splunk search package. This feature is important to me because it enables SOC analysts to do their job more efficiently and be able to investigate or mediate incidents at a faster pace."
"Without Splunk Enterprise Security, it would be difficult for us to manage and prioritize alerts. There's a potential to lose track of important notifications, and it's essential to our security that we do not miss anything. Splunk has improved our investigations because the reporting and dashboarding make things so much easier. We can provide weekly or monthly reports. I also like Splunk's ability to integrate."
 

Cons

"Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus."
"Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways."
"A problem that we had recently had was we licensed it based on how much data you upload to them every day."
"The integration could be a bit better. They charge for certain integrations."
"There's been a big push for SBC compute over the ingestion model, which will hamper us."
"The biggest thing with Splunk is making sure that the documentation is maintained."
"I love the solution, but I would like to see more accessibility to the machine-learning capabilities that are sprinkled around Splunk."
"It is very complicated to write your own correlation rules without the help of Splunk support."
"Splunk Enterprise Security can be improved with more ease of configuration."
"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."
 

Pricing and Cost Advice

"I don't have to put up with any longer with these hypercomplex licensing agreements. Every time I want to add some additional reporting as a compliance centric or regulatory specific, e.g., GDPR, PCI, or Sarbanes-Oxley, many providers would have an additional license for this, which felt a bit ridiculous to me. With the simplified licensing architecture, there were no hidden "gotchas" down the road with empow. Something I have experienced with other providers that I've worked with in the past."
"With a higher degree of fidelity in the alarms, we were able to avoid adding additional resources to our teams. We take into account the cost of security resources in the market and the significantly higher fidelity from the alarms that are being generated. This drove down our costs with our MSSP. It drove down my cost for human capital internally. It drove down our need to have multiple resources supporting the underlying infrastructure and health and maintenance of empow as a platform from several resources down to one. Therefore, human capital costs were significantly reduced. Our operating expenses were significantly reduced. Our capital costs were significantly reduced while tripling our capacity and our run rate reduced. It was almost a "too good to be true" situation. Fortunately, for us, it worked out very nicely."
"Splunk Enterprise Security is expensive."
"The Splunk Enterprise Security license is expensive."
"Splunk is definitely not a cheap solution. It is an expensive product."
"Its pricing model can be improved."
"It is pretty straightforward and based on the sizing. If I compare it with other competitors, it makes sense."
"I think that most of the monitoring solutions are expensive."
"From what I have seen so far, Splunk has multiple cost models. The one that we are using is pretty good when it comes to ingesting data into the environment. It has worked out pretty well."
"The pricing of Splunk Enterprise Security is somewhat high, but comparing it with its benefits, it's acceptable. It depends on the type of business."
report
Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
893,311 professionals have used our research since 2012.
 

Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
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
Construction Company
13%
Performing Arts
10%
Manufacturing Company
8%
Outsourcing Company
6%
Financial Services Firm
14%
Manufacturing Company
9%
Computer Software Company
9%
Comms Service Provider
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business118
Midsize Enterprise50
Large Enterprise270
 

Questions from the Community

Ask a question
Earn 20 points
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

University of Oklahoma, Donnelley
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, IBM, Wazuh and others in Security Information and Event Management (SIEM). Updated: April 2026.
893,311 professionals have used our research since 2012.