Microsoft Defender for Cloud Apps (formerly Microsoft Cloud App Security) is a multimode cloud access security broker.
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Splunk Enterprise
Score 8.6 out of 10
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Splunk is software for searching, monitoring, and analyzing machine-generated big data, via a web-style interface. It captures, indexes and correlates real-time data in a searchable repository from which it can generate graphs, reports, alerts, dashboards and visualizations.
Microsoft Defender for Cloud Apps is well suited when working with other Microsoft Applications. For example, if you are working with Microsoft Office 365 it works very well when implementing CASB features. It works when implementing monitoring or blocks on Sanctioned applications however customizing the message to users is not that great.
It's well suited for what I do, which is network security operations. And that's for anything from troubleshooting incidents, troubleshooting performance, troubleshooting for the purpose of a compliance and auditing. It's not best suited for users who are new in terms of they're new to the product and they have expectations that probably Splunk cannot meet.
The integration to Microsoft Entra ID is seamless, which allows Conditional Access to redirect the session to Microsoft Defender for Cloud App for it to take actions (Block or Monitor).
Tracker users' activity is very good when troubleshooting or running an investigate.
Detecting risky users through tight integration with Microsoft Entra ID is a very good feature.
Detecting mass downloads and blocking the download of files from non-manage company devices is a very good feature as well.
It takes some time to scan and apply the policies when there is some sensitive information.
After it applies the policies, it works, but there is a delay.
It doesn't provide any way to scan Microsoft Teams when an external exchange of images is happening. You can always do the filtering on the documents during the chat, but if there is an image, then some kind of OCR capability is required to detect it. At present, there is no way [Microsoft Cloud App Security] can go and detect those kinds of images and alert us
We are using Splunk extensively in our projects and we have recently upgraded to Splunk version 6.0 which is quite efficient and giving expected results. We keep track of updates and new features Splunk introduces periodically and try to introduce those features in our day to day activities for improvement in our reporting system and other tasks.
The interface is pretty simple and easy to use; however, you will need to do a lot of investigative research on your own to get comfortable with it. Originally, many of the Microsoft security tools had their own seperate consoles. Overtime, they have blended into one interface which is the ideal state. In some cases it is clear Microsoft had to pick which console a certain feature or setting was going to reside in and this leads to some confusion. For example, DLP is managed through Defender for Cloud Apps but you will also need to jump into Purview. For things like reverse proxy on your M365 tenant, you will need to go into Azure and setup conditional access rules. Not a big problem and I can understand why the settings are located where they are but for someone just starting out with Defender for Cloud Apps, it will take some time to figure out.
You can literally throw in a single word into Splunk and it will pull back all instances of that word across all of your logs for the time span you select (provided you have permission to see that data). We have several users who have taken a few of the free courses from Splunk that are able to pull data out of it everyday with little help at all.
I have not utilized actual support but the Sales and Product teams have been super helpful in moving our implementation forward and showing us the best practices.
Splunk maintains a well resourced support system that has been consistent since we purchased the product. They help out in a timely manner and provide expert level information as needed. We typically open cases online and communicate when possible via e-mail and are able to resolve most issues with that method.
The online course was simple clear and described the main capabilities of the solution. There is also an initial module that can be done for free so anyone can familiarize themselves with the functionality of this solution. On the other hand, however, there could be more free online courses. Maybe even with a certificate, this would broaden the group of people who are familiar with the platform while increasing familiarity with the solution itself.
More flexible and more features with easy integration with cloud services like Microsoft Azure and other cloud services. Overall both gives similar features but we prefer Microsoft cloud app security due to its high threat detection rate. mostly we have been able to stop the threat in very very less time.
I didn't get to fully evaluate Logstash as our corporation was already using Logstash, but both seemed like viable solutions to the problem that we were having. I wanted to evaluate Logstash some more, both did seem like they would work for the business needs that we had, we went with splunk as many teams were already using it.
Cloud App Security saves us thousands of dollars finding and rectifying apps security issues
Identity Security Posture helps the organization identity stay in shape, saving thousands of dollars on security consultations
The cost of suffering a breach cannot be quantified, CAS helps minimize the chances of the attackers succeeding, with excellent historical logging for most operations
I don't have any numbers to share but Splunk has positively served as a 24/7 monitoring tool that has saved hours of work by self-detecting, saving statistics and alerting problems in the system or from external interfaces as soon as they happen.
Splunk dashboards does a solid job in collecting, analyzing data and creating reports that contain an entire day's activity and then automatically sent out to the business.
Splunk is very easy to learn and very useful to any program or business application.