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Microsoft Cloud App Security

Elevate your security posture by taking control of your cloud environment.

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

Key benefits

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.

Check your cloud apps’ compliance

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

Microsoft approach to CASB

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 Cloud App Security natively integrates with industry-leading security and identity solutions including Azure Active Directory, Intune, Microsoft Information Protection, and any other solutions you want to use.

Forrester Total Economic Impact Study

With this study, customers have substantive data support to understand how owning and using Microsoft Cloud App Security can accelerate cloud migration.3

Why customers love Microsoft Cloud App Security

Mantrac logo

Mantrac manages virtual workplace with Cloud App Security

“Today, Mantrac also takes advantage of Microsoft Cloud App Security 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 Cloud App Security 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 Cloud App Security

“If you use [Microsoft 365] and Azure, and you’re looking for a CASB, I doubt you can find a better solution than Microsoft Cloud App Security. It’s a top-rated Gartner solution, created for the apps most of us use.”

- 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 Cloud App Security

Try Cloud App Security 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 Cloud App Security.

Join the MCAS community

The Microsoft Cloud App Security community welcomes enthusiasts, customers, and IT professionals.

Test your proof of concept

Try out scenarios that deliver the optimum value of Microsoft Cloud App Security.

Send feedback about MCAS

Submit a Gartner Peer Insights entry about your experience using Microsoft Cloud App Security.

A simple circular diagram shows how Zero Trust security 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. The Forrester Wave™: Cloud Security Gateways, Q2 2021, Andras Cser, May 2021.
3. A commissioned study conducted by Forrester Consulting, May 2020.

On the left side of this infographic, a bar chart stacks the benefits of deploying Microsoft Cloud App Security. 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.