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Microsoft Purview Audit vs Splunk Enterprise Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

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

Microsoft Purview Audit
Ranking in Log Management
27th
Average Rating
8.2
Reviews Sentiment
5.1
Number of Reviews
4
Ranking in other categories
Microsoft Security Suite (30th)
Splunk Enterprise Security
Ranking in Log Management
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
466
Ranking in other categories
Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

As of September 2026, in the Log Management category, the mindshare of Microsoft Purview Audit is 1.1%, up from 0.5% compared to the previous year. The mindshare of Splunk Enterprise Security is 6.8%, down from 7.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security6.8%
Microsoft Purview Audit1.1%
Other92.1%
Log Management
 

Featured Reviews

OK
Cloud Solution Engineer at a computer software company with 51-200 employees
Integrated auditing has strengthened data retention and improved incident investigations
I have seen areas for improvement, specifically in Microsoft Purview Audit or in general about Microsoft. I have had a situation with documentation. I had a customer who wanted to create alerts and they had Microsoft 365 Business Premium. In the documentation, it was noted that this license is enough for creating alerts. When we tried to make them, we noticed they cannot do it with Microsoft 365 E3 because the customer had limited features to manage alerts. The customer had to buy E3. We created Microsoft support requests, and they confirmed that the documentation displayed not the real situation and they have been going to update documentation. The same situation occurred now with implementing Microsoft Purview Audit in the last autumn. eDiscovery was combined with search and content search, and the documentation was not clear at the beginning. It was a little difficult to describe to customers that now it is a part of eDiscovery. Content search is a very simple functionality, while eDiscovery is a little difficult. I am not entirely sure why Microsoft is going in the way of combining these services because they are the same. However, for a customer who has never seen these services, it is difficult to understand quickly. The same situation occurs with litigation holds and some other holds. For any mail, I am trying to keep data. For example, emails are held for a year or two years, ten years, it does not matter. It is difficult to understand where to find this data and where these emails are being held. I need to use eDiscovery to find out all deleted data that was kept somewhere in some hidden folders of the mailbox. Regular customers and regular administrators know that on-premises Exchange, for example, allows them to find the data in some repository and review the list of kept data. However, with this hold, we do not have any functionality to review the list of kept data. It is difficult to understand for customers how to work with this. I had a case where I spent three or four hours working deeply with a customer to explain how to work with eDiscovery, why Content Search is not there when it was before, what is an eDiscovery case, and why we are talking about all of this just to review a list of kept emails. This is difficult.
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

"The main Microsoft feature is that it offers common integration of services, of data, of identity, meaning user accounts, user access, and privileged access."
"The overall user experience with Microsoft Purview Audit is of higher quality than when it was branded as Compliance Center, and Microsoft consistently updates and evolves functionalities and the overall experience."
"The platform has significantly enhanced our operational insight into the overall Microsoft 365 environment."
"We're easily saving at least one hour per day using this solution."
"The scalability of the solution is amazing because it can collect a lot of data and you can have your own structure to monitor this data."
"Splunk UBA is useful for fraud detection and for detection of APTs, advanced persistent threats."
"Splunk Enterprise Security is a valuable tool that allows us to monitor data from the APS daily."
"The feature that we use the most is the correlation search engine within ES."
"The AI-driven detections have improved the accuracy of my investigations significantly, reduced my mean time to detection by about 30 percent and my mean time to resolution by about 40 percent, and contributed to faster, more efficient threat detection compared to other SIEM tools I have used."
"We primarily use it to correlate logs throughout the enterprise for both searching and use in investigations."
"Splunk goes beyond collecting basic metrics like CPU or memory utilization; it comprehensively gathers data from various sources, including networks, applications, and virtualization, eliminating the need for siloed solutions and enhancing the capabilities of existing engineering software."
"It has been really good at consolidating a lot of data from different sources. It's really good at generating summaries."
 

Cons

"I had a case where I spent three or four hours working deeply with a customer to explain how to work with eDiscovery, why Content Search is not there when it was before, what is an eDiscovery case, and why we are talking about all of this just to review a list of kept emails."
"We do have a Denial of Access happening."
"We are still in the early stages of leveraging Microsoft Purview Audit. Currently, it's primarily used for the audit function."
"Areas for product improvement include enhancing customization options and integrating more comprehensive compliance features."
"The UI sometimes can be laggy and not responsive."
"Sometimes talking through email isn't the most effective method, as they go through troubleshooting steps we've already taken, which requires additional back-and-forth communication."
"Sometimes the communication with support happens with multiple staff. They should reduce the time to resolution."
"Its reporting can be improved."
"It is a good product, but the Achilles heel for a lot of organizations is the cost model for it because it gets expensive."
"Splunk's implementation process for managing multiple indexes can be complex, especially when dealing with a large number of components."
"Sometimes, the data does not match what we're looking for, or the tool contains incorrect data."
"I love the solution, but I would like to see more accessibility to the machine-learning capabilities that are sprinkled around Splunk."
 

Pricing and Cost Advice

Information not available
"We have had a reduction in the time it takes to resolve issues and correlate what has failed."
"The price can always be lower, but it is fair at the moment. The cost efficiencies depend on the licensing and how much data we are bringing in. We have a fairly large footprint, so it is cost-effective."
"It's more expensive than the other tools, but it's worth it. Every penny is worth it."
"Splunk Enterprise Security is not at all cost-friendly to be deployed in very small enterprises like start-ups."
"The pricing could be made more competitive."
"Our customers often complain that the price of Splunk is too high."
"In terms of pricing, I believe Splunk is unreasonably costly for the majority of mid and small-sized companies."
"Splunk Enterprise Security is a bit expensive overall, but it provides good value."
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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
Financial Services Firm
12%
Computer Software Company
10%
Comms Service Provider
8%
Manufacturing Company
6%
Outsourcing Company
12%
Financial Services Firm
12%
Manufacturing Company
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business134
Midsize Enterprise76
Large Enterprise316
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Purview Audit?
It is not so expensive in comparison with other products, but I can tell you about an example.
What needs improvement with Microsoft Purview Audit?
I have seen areas for improvement, specifically in Microsoft Purview Audit or in general about Microsoft. I have had a situation with documentation. I had a customer who wanted to create alerts and...
What is your primary use case for Microsoft Purview Audit?
I work with Defender for IoT by chance because I see that we have enough reviews for Defender for Office 365 today, and we need reviews for some Azure products. I work with Azure products such as L...
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 Microsoft Purview Audit vs. Splunk Enterprise Security and other solutions. Updated: September 2026.
914,394 professionals have used our research since 2012.