Zscaler

Zscaler CASB secures both SaaS applications such as Microsoft 365 and Salesforce and infrastructure services such as Amazon S3, aiming to prevent the risky sharing that leads to data loss or non compliance.

Combining inline real time security with out of band scanning is the architectural point. Inline control catches activity as it happens but only sees traffic passing through it, while API based scanning reaches data already sitting in a SaaS tenant that no proxy will ever observe. Neither approach alone covers a real estate, which is why doing both under one automated policy is the meaningful claim.

Zscaler frames the problem with published figures: Gartner expects 70 percent of workloads to run in the cloud by 2028, IDC expects 175 zettabytes of data to move to the cloud, and IBM found 82 percent of breaches involved data stored in the cloud. The argument follows that legacy stacks defending networks are ineffective when cloud resources are both the greatest assets and the biggest risks.

Data protection covers accidental and risky file shares alongside insider threats such as intellectual property theft, with granular policies applied consistently across cloud applications. Threat protection remediates zero day malware using cloud sandboxing refined by 200 billion transactions and 150 million threats identified daily. The stated operational benefit is retiring costly point products and reducing IT complexity through a cloud based architecture. Pricing is not published, though Zscaler maintains a pricing and plans page.