Microsoft Sentinel vs Splunk Enterprise Security comparison

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32,763 views|18,195 comparisons
92% willing to recommend
Splunk Logo
25,711 views|20,955 comparisons
92% willing to recommend
Comparison Buyer's Guide
Executive Summary
Updated on Mar 30, 2024

We compared Splunk Enterprise Security and Microsoft Sentinel based on our users' reviews using several parameters.

Splunk Enterprise Security is praised for its threat intelligence, analytics, and user-friendly interface. Users mention improvements needed in user-friendliness, search query language, and performance. Pricing is considered high but justified by the value. Microsoft Sentinel is affordable and has a simpler setup process. Users appreciate the advanced threat visibility, integration with other Microsoft products, and machine learning capabilities. Improvement suggestions include a more intuitive interface, better customization options, and enhanced integration with third-party tools. Users find both products valuable with positive impacts on their organization.

Features: Splunk Enterprise Security stands out for its customizable analytics and real-time monitoring, while Microsoft Sentinel excels in advanced threat visibility and machine learning integration. Splunk focuses on scalability and customization, whereas Sentinel emphasizes centralizing alerts and actionable insights.

Pricing and ROI: Splunk Enterprise Security tends to have higher pricing and high setup costs initially, but users find the value and benefits worth the investment. Microsoft Sentinel is noted for its reasonable pricing, minimal setup costs, and flexible licensing options. Splunk Enterprise Security offers improved operational efficiency, threat detection, and incident response, while Microsoft Sentinel provides enhanced security, reduced incident response time, and seamless integration.

Room for Improvement: Splunk Enterprise Security users seek a more user-friendly interface and simplified search query language. They desire enhanced alerting and reporting features to improve performance. Microsoft Sentinel users want a more intuitive platform, better customization options, enhanced integration capabilities, and improved reporting and documentation.

Deployment and customer support: While Splunk Enterprise Security had varying implementation durations, users found Microsoft Sentinel quicker to deploy. However, some noted that Sentinel's setup was more complex compared to Splunk's faster implementation and simpler setup process. Splunk Enterprise Security stands out for its prompt response times and knowledgeable staff, enhancing the overall user experience. Microsoft Sentinel impresses with quick issue resolution and effective, helpful support, leading to positive user experiences.

The summary above is based on 201 interviews we conducted recently with Splunk Enterprise Security and Microsoft Sentinel users. To access the review's full transcripts, download our report.

To learn more, read our detailed Microsoft Sentinel vs. Splunk Enterprise Security Report (Updated: March 2024).
768,415 professionals have used our research since 2012.
Q&A Highlights
Question: What is a better choice, Splunk or Azure Sentinel?
Answer: 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 volume increases. Splunk is good for operations style use cases (NOC), but requires ESS and isn't as easy to use or get data out of for SOC style use cases. Sentinel is good for endpoint Windows Defender Advanced Edition (extra cost, not the free version), analysis and malware findings, and when the data sources are all Windows events (O365/OneDrive/Email/ADFS), but costs go up substantially if the log sources aren't Microsoft events, and support for non-MSFT log sources is limited. Neither offers real UEBA capabilities IMO. Splunk has the add-on (entirely different architecture and systems), for the Caspida UEBA. MSFT will tout UEBA on Sentinel, but it's endpoint related (not network) and I've yet to see use cases on non-MSFT application data events.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"There are a lot of things you can explore as a user. You can even go and actively hunt for threats. You can go on the offensive rather than on the defensive.""Sentinel improved how we investigate incidents. We can create watchlists and update them to align with the latest threat intelligence. The information Microsoft provides enables us to understand thoroughly and improve as we go along. It allows us to provide monthly reports to our clients on their security posture.""The most valuable features in my experience are the UEBA, LDAP, the threat scheduler, and integration with third-party straight perform like the MISP.""What is most useful, is that it has a good connection to the Microsoft ecosystem, and I think that's the key part.""Sentinel is a SIEM and SOAR tool, so its automation is the best feature; we can reduce human interaction, freeing up our human resources.""If you know how to do KQL (kusto query language) queries, which are how you query the log data inside Sentinel, the information is pretty rich. You can get down to a good level of detail regarding event information or notifications.""Sentinel pricing is good""The AI and ML of Azure Sentinel are valuable. We can use machine learning models at the tenant level and within Office 365 and Microsoft stack. We don't need to depend upon any other connectors. It automatically provisions the native Microsoft products."

More Microsoft Sentinel Pros →

"You can check up on security from the dashboards.""The initial setup is pretty straightforward.""Splunk's advantage is its search capability. Its search is notably faster. With Splunk, I can search easily on keywords. That is great.""The solution allows easy gathering and ingestion of the data.""Recently, Splunk upgraded to version 9.0.02, which includes excellent data dashboards and visualization effects.""The most valuable features for us include its robust log management capabilities, which allow us to efficiently handle and retain logs for extended periods as needed.""The Splunk queries are valuable.""Splunk has improved our operations by giving us access to more information and allowing us to deploy more use cases."

More Splunk Enterprise Security Pros →

Cons
"They need to work with other security vendors. For example, we replaced our email gateway with Symantec, but we couldn't collect these logs with Azure Sentinel. Instead of collecting these logs with Azure Sentinel, we are collecting them on Qradar. We couldn't do it with Sentinel, which is a problem for us.""The performance could be improved. If I create 15 to 20 lines for a single-use case in KQL, sometimes it takes more time to execute. If I create use cases within a certain timeline, the result will show in .01 seconds. A complex query takes more time to get results.""The KQL query does not function effectively with Windows 11 machines, and in the majority of machine-based investigations, KQL queries are essential for organizing the data during investigations.""The dashboards can be improved. Creating dashboards is very easy, but the visualizations are not as good as Microsoft Power BI. People who are using Microsoft Power BI do not like Sentinel's dashboards.""We'd like to see more connectors.""There is a wider thing called Jupyter Notebooks, which is around the automation side of things. It would be good if there are playbooks that you can utilize without having to have the developer experience to do it in-house. Microsoft could provide more playbooks or more Jupyter Notebooks around MITRE ATT&CK Framework.""Everyone has their favorites. There is always room for improvement, and everybody will say, "I wish you could do this for me or that for me." It is a personal thing based on how you use the tool. I do not necessarily have those thoughts, and they are probably not really valuable because they are unique to the context of the user, but broadly, where it can continue to improve is by adding more connectors to more systems.""The built-in SOAR is not really good out-of-the-box. The SOAR relies on logic apps and you almost need to have some kind of developer background to be able to make these logic apps. Most security people cannot develop anything..."

More Microsoft Sentinel Cons →

"Given the ever-increasing number of threats, I would like Splunk to update its threat signatures more frequently.""The support that is included with the standard licensing fee is very bad.""While Splunk Enterprise Security offers valuable features, its cost is high and could be more competitive.""Its pricing is extremely high. There are other tools out in the market that are competitive. They do not necessarily have all the functionality, but they are competitive. The professional services we have used have been high as well in comparison to the market.""The only thing which can be improved is that they are too subjective on whom their Splunk4Good initiative can be applied. They market it as you only need to be a nonprofit, but there is more to it.""The solution could improve by making it more business analysis oriented. The way it is now is designed more for developers.""The case management area of the ES could be improved. The ability to move cases through various stages and states. The ability to close a case would be key improvement.""More training on PetaData using artificial intelligence techniques to identify the events which are not normal and exceptions that would help the organization identify threats and malware on the go with results."

More Splunk Enterprise Security Cons →

Pricing and Cost Advice
  • "It comes with a Microsoft subscription which the customer has, so they don't have to invest somewhere else."
  • "It is a consumption-based license model. bands at 100, 200, 400 GB per day etc. Azure Sentinel Pricing | Microsoft Azure"
  • "Good monthly operational cost model for the detection and response outcomes delivered, M365 logs don't count toward the limits which is a good benefit."
  • "I have had mixed feedback. At one point, I heard a client say that it sometimes seems more expensive. Most of the clients are on Office 365 or M365, and they are forced to take Azure SIEM because of the integration."
  • "It is kind of like a sliding scale. There are different tiers of pricing that go from $100 per day up to $3,500 per day. So, it just kind of depends on how much data is being stored. There can be additional costs to the standard license other than the additional data. It just kind of depends on what other services you're spinning up in Azure, or if you're using something like Azure log analytics."
  • "I am just paying for the log space with Azure Sentinel. It costs us about $2,000 a month. Most of the logs are free. We are only paying money for Azure Firewall logs because email logs or Azure AD logs are free to use for us."
  • "Sentinel is a bit expensive. If you can figure a way of configuring it to meet your needs, then you can find a way around the cost."
  • "Azure Sentinel is very costly, or at least it appears to be very costly. The costs vary based on your ingestion and your retention charges."
  • More Microsoft Sentinel Pricing and Cost Advice →

  • "Pricing and licensing is quite expensive. But for the value the product provides, it seems at par in the market."
  • "Although Splunk is an expensive product, it is designed to be utilized across your organization in order to maximize your ROI and lower your TCO."
  • "It is not cheap."
  • "Splunk Enterprise becomes extremely expensive after the 20GB/month license."
  • "You will eat up whatever you purchase quickly. The level of insights that Splunk empowers is addictive."
  • "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."
  • "Pricing is pretty fair."
  • "While licensing can be a concern, there are ways to reduce the licensing costs including filtering some events."
  • More Splunk Enterprise Security Pricing and Cost Advice →

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    Comparison Review
    Vinod Shankar
    Questions from the Community
    Top Answer:Yes, Azure Sentinel is a SIEM on the Cloud. Multiple data sources can be uploaded and analyzed with Azure Sentinel and its Threat Hunting functionality with AI available as templates or customized by… more »
    Top Answer: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… more »
    Top Answer:We like that Azure Sentinel does not require as much maintenance as legacy SIEMs that are on-premises. Azure Sentinel is auto-scaling - you will not have to worry about performance impact, you will… more »
    Top Answer: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,… more »
    Top Answer: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… more »
    Top Answer:Splunk helps us be more proactive. We can take predictive action to identify and block threats so that nothing harmful gets into the system.
    Ranking
    Views
    32,763
    Comparisons
    18,195
    Reviews
    60
    Average Words per Review
    1,620
    Rating
    8.4
    Views
    25,711
    Comparisons
    20,955
    Reviews
    63
    Average Words per Review
    958
    Rating
    8.4
    Comparisons
    Also Known As
    Azure Sentinel
    Learn More
    Overview

    Microsoft Sentinel is a scalable, cloud-native, security information event management (SIEM) and security orchestration automated response (SOAR) solution that lets you see and stop threats before they cause harm. Microsoft Sentinel delivers intelligent security analytics and threat intelligence across the enterprise, providing a single solution for alert detection, threat visibility, proactive hunting, and threat response. Eliminate security infrastructure setup and maintenance, and elastically scale to meet your security needs—while reducing IT costs. With Microsoft Sentinel, you can:

    - Collect data at cloud scale—across all users, devices, applications, and infrastructure, both on-premises and in multiple clouds

    - Detect previously uncovered threats and minimize false positives using analytics and unparalleled threat intelligence from Microsoft

    - Investigate threats with AI and hunt suspicious activities at scale, tapping into decades of cybersecurity work at Microsoft

    - Respond to incidents rapidly with built-in orchestration and automation of common tasks

    To learn more about our solution, ask questions, and share feedback, join our Microsoft Security, Compliance and Identity Community.

    Splunk Enterprise Security is a SIEM, log management, and IT operations analytics tool. The solution provides users with the ability to secure their information and manage their data in the cloud, data centers, or other applications. Splunk Enterprise Security also offers visibility from different areas, levels, and devices, rather than from a single system, thus, providing its users with flexibility. Splunk Enterprise Security can monitor data and analyze, detect, and prevent intrusions. This benefits users as it provides alerts to possible intrusions, helps users to be proactive, and reduces risk factors. 

    Full visibility across your environment

    Break down data silos and gain actionable intelligence by ingesting data from multicloud and on-premises deployments. Get full visibility to quickly detect malicious threats in your environment.

    Fast threat detection

    Defend against threats with advanced security analytics, machine learning and threat intelligence that focus detection and provide high-fidelity alerts to shorten triage times and raise true positive rates.

    Efficient investigations

    Gather all the context you need and initiate flexible investigations with security analytics at your fingertips. The built-in open and extensible data platform boosts productivity and drives down fatigue.

    Open and scalable

    Built on an open and scalable data platform, you can stay agile in the face of evolving threats and business needs. Splunk meets you where you are on your cloud journey, and integrates across your data, tools and content.

    Sample Customers
    Microsoft Sentinel is trusted by companies of all sizes including ABM, ASOS, Uniper, First West Credit Union, Avanade, and more.
    Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
    Top Industries
    REVIEWERS
    Financial Services Firm22%
    Computer Software Company11%
    Manufacturing Company8%
    Comms Service Provider8%
    VISITORS READING REVIEWS
    Computer Software Company16%
    Financial Services Firm10%
    Government9%
    Manufacturing Company7%
    REVIEWERS
    Computer Software Company18%
    Financial Services Firm15%
    Government10%
    Energy/Utilities Company7%
    VISITORS READING REVIEWS
    Financial Services Firm15%
    Computer Software Company14%
    Government9%
    Manufacturing Company7%
    Company Size
    REVIEWERS
    Small Business33%
    Midsize Enterprise21%
    Large Enterprise47%
    VISITORS READING REVIEWS
    Small Business25%
    Midsize Enterprise16%
    Large Enterprise59%
    REVIEWERS
    Small Business31%
    Midsize Enterprise12%
    Large Enterprise57%
    VISITORS READING REVIEWS
    Small Business19%
    Midsize Enterprise13%
    Large Enterprise68%
    Buyer's Guide
    Microsoft Sentinel vs. Splunk Enterprise Security
    March 2024
    Find out what your peers are saying about Microsoft Sentinel vs. Splunk Enterprise Security and other solutions. Updated: March 2024.
    768,415 professionals have used our research since 2012.

    Microsoft Sentinel is ranked 1st in Security Information and Event Management (SIEM) with 85 reviews while Splunk Enterprise Security is ranked 2nd in Security Information and Event Management (SIEM) with 227 reviews. Microsoft Sentinel is rated 8.2, while Splunk Enterprise Security is rated 8.4. The top reviewer of Microsoft Sentinel writes "Gives a comprehensive and holistic view of the ecosystem and improves visibility and the ability to respond". On the other hand, the top reviewer of Splunk Enterprise Security writes "It has a drag-and-drop interface, so you don't need to know SQL or Java to construct a query ". Microsoft Sentinel is most compared with AWS Security Hub, IBM Security QRadar, Microsoft Defender for Cloud, Elastic Security and Wazuh, whereas Splunk Enterprise Security is most compared with Wazuh, Dynatrace, IBM Security QRadar, Elastic Security and Azure Monitor. See our Microsoft Sentinel vs. Splunk Enterprise Security report.

    See our list of best Security Information and Event Management (SIEM) vendors.

    We monitor all Security Information and Event Management (SIEM) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.