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Microsoft Defender for Cloud Apps

Elevate the posture and secure access of your cloud apps.

Key benefits

Identify and combat cyberthreats across your cloud services with Microsoft Defender for Cloud Apps, a cloud access security broker (CASB) that provides multifunction visibility, control over data travel, and sophisticated analytics.

Discover and manage your apps

Streamline cloud access security with native integration. Control and audit your apps and resources.

Govern access to apps and resources

Discover shadow IT in your organization. Understand and control your digital information estate.

Assess the compliance of your apps

Evaluate against compliance standards, prevent leaks, and limit access to regulated data.

The Microsoft approach to the CASB market

Gain visibility into your cloud apps and services using sophisticated analytics to identify and combat cyberthreats. Control how your data is consumed, no matter where it lives. Microsoft Defender for Cloud Apps natively integrates with industry-leading security and identity solutions or any other solutions you want to use.

Integrated threat protection with SIEM & XDR

Microsoft empowers your organization’s defenders by putting the right tools and intelligence in the hands of the right people. Combine SIEM and XDR to increase efficiency and effectiveness while securing your digital estate.


Learn more about threat protection

Microsoft 365 Defender


Prevent and detect attacks across your Microsoft 365 workloads with built-in XDR capabilities.

Microsoft 365 Defender dashboard highlighting active incidents, active threats and more.

Microsoft 365 Defender


Prevent and detect attacks across your Microsoft 365 workloads with built-in XDR capabilities.

Forrester Total Economic Impact Study

With this study, customers have substantive data support to understand how owning and using Microsoft Defender for Cloud Apps (formerly Microsoft Cloud App Security) can accelerate cloud migration.4

Why customers love Microsoft Defender for Cloud Apps

Mantrac logo

Mantrac manages virtual workplace with Defender for Cloud Apps

“Today, Mantrac also takes advantage of Microsoft Defender for Cloud Apps to keep an eye on unsanctioned use of cloud applications by employees anywhere, and guide them to use only secure, trusted apps.”

Nakilat logo

NAKILAT increases its cloud security

“Using Microsoft Defender for Cloud Apps as a magnifying glass, we gain amazing visibility into our SaaS environment, giving us the confidence we need to deliver on our digital workplace transformation.”


- Muhammad Yasir Khan, Head of IT Infrastructure

Ansell logo

Ansell collects on web security and compliance requirements with Defender for Cloud Apps

“If you use [Microsoft 365] and Azure, and you’re looking for a CASB, I doubt you can find a better solution than Microsoft Defender for Cloud Apps.”

- George Michalitsianos, Senior Director of IT Security and Infrastructure

St. Luke’s logo

St. Luke’s boosts compliance, protects health data

“St. Luke’s turned to the cloud for speed, security, and agility. We’re getting rid of infrastructure and automating IT processes, so we can shift our skills to sourcing and delivering more business value-added solutions.”

- Chad Brisendine, Chief Information Officer

Get started with Microsoft Defender for Cloud Apps

Try it for free

Set up quickly and get insights almost instantly. Control and peace of mind are a click away.

Begin deployment

Once you deploy, use our guidance and support as you gain knowledge and insights into your environment.

Additional resources

Explore top use cases for CASBs

Learn about customers’ primary concerns when navigating resource and app management and control.

What is a CASB?

Read selections from our technical documentation to learn about this critical cloud acceleration tool.

Get licensing information

See licensing options for Microsoft Defender for Cloud Apps.

Join the Microsoft Defender for Cloud Apps community

The Microsoft Defender for Cloud Apps community welcomes enthusiasts, customers, and IT professionals.

Test your proof of concept

Try out scenarios that deliver the optimum value of Microsoft Defender for Cloud Apps.

Send feedback about Microsoft Defender for Cloud Apps

Submit a Gartner Peer Insights entry about your experience using Microsoft Defender for Cloud Apps.

A simple circular diagram shows how Microsoft brings a unique approach to the CASB market, helping customers to achieve Zero Trust security. Microsoft Defender for Cloud Apps uses an enforcement engine at its core, providing real-time policy evaluation. The engine delivers protection by analyzing signals, applying organization-wide policies and threat intelligence, and ensuring identities are verified and authenticated and devices are safe. It conditionally grants access to data, apps, infrastructure, and networks, providing continuous and comprehensive visibility, analytics, and automation.

1. Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner’s research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.
Gartner, Magic Quadrant for Cloud Access Security Brokers, 28 October 2020, Craig Lawson | Steve Riley.
Gartner Peer Insights reviews constitute the subjective opinions of individual end users based on their own experiences and do not represent the views of Gartner or its affiliates.
2, 4. The Total Economic Impact™ (TEI) Of Microsoft Cloud App Security, a commissioned study conducted by Forrester Consulting, May 2021.

3. The Forrester Wave™: Cloud Security Gateways, Q2 2021, Andras Cser, May 2021.

On the left side of this infographic, a bar chart stacks the benefits of deploying Microsoft Defender for Cloud Apps. From lowered time and effort for remediation of incidents to improved compliance and auditing, the savings total over $8.9M. Three important numbers appear on the right: the 151 percent return on investment (ROI), the net present value (NPV) of $5.35M, and the total payback time of less than three months.