What is the primary purpose of policies based on file types in Zscaler DLP?

The primary purpose of policies based on file types in Zscaler Data Loss Prevention (DLP) is to protect sensitive data by allowing or blocking specific file types and activities. This capability is crucial for organizations that need to safeguard confidential information from being shared or leaked outside of the corporate environment.

By implementing these policies, Zscaler DLP can identify and control the flow of files based on their type (e.g., documents, images, or media files). This allows organizations to enforce compliance with internal regulations and external standards by preventing the transmission of sensitive files such as personal identifiable information (PII) or financial records over the internet. For example, an organization can block the upload of specific file types to non-secure sites while allowing access to secure or authorized destinations, thereby protecting sensitive data from unauthorized exposure.

The ability to enforce these policies in real time helps organizations manage risk effectively while enabling productive use of data in their operations. The other options do not align with the primary mission of data protection and data governance that Zscaler DLP focuses on, making this choice the most relevant in the context of the question.