Microsoft Defender for Cloud Apps

Formerly Microsoft Cloud App Security

Microsoft Defender for Cloud Apps was chosen primarily due to its ability to work perfectly within our mostly M365 environment. Given that this was an added feature of our E5 license, we chose to dive into it and use it due to it's good visibility into user actions and the ability to tie all M365 actions together into one place. We did not see similar visibility with other tools that we vetted.

Microsoft Defender for Cloud Apps acts as an additional security layer for all SaaS applications our organizations uses to do business and helps providing detailed information about this Apps that we normally use across the entire organizations on a single dashboard, enabling us to monitor user activity and block risky SaaS App and configure policies on granular level.

We did not evaluate other tools, as our main driver was Defender ATP and MCAS came included

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.

We had a past experience with Microsoft ATA, one of the engines that Cloud App Security now uses to provide insights on internal threats, Microsoft ATA was discontinued and all of its features became part of the Microsoft Defender suite, surely, Cloud App Security and the Microsoft Defender Suite provide way more features and capabilities. We didn't spend much time deciding [on] Cloud App Security, we already had Azure, Office 365, and Defender for Endpoint, Cloud App Security was the right decision with the blend of products we already have and its integration with the rest of Microsoft Security products makes it a valuable addition.

Microsoft Cloud App Security is more professional than Google 360. It helped organize documents better and staff [was] more willing to integrate it into their daily routines. Microsoft offered more options for organizations and it made more sense the way their application was structured. Google was harder to keep track of documents.

pricing and flexibility and implementation is quite easy compared to other products.

I would go for MS because we leverage Azure in our organization and that helps.

MCAS works well for our particular needs in the DLP, Data Protection, cloud discovery and Threat Detection spaces; most of these tools can accomplish the same tasks and also do enforcements with a forward proxy solution - MCAS does not offer that and if you need it you will have to look at other solutions. To find the best CASB for your org, ensure that you truly know your needs and requirements.