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Set Up and Maintain Your Salesforce Organization
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            Review File Upload and Download Security

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            Review File Upload and Download Security

            Learn about file upload and download security.

            • Prevent Upload of Attachment with High-Risk Type Files Control
              Blocks upload of executable and high-risk file types (HTML, HTM, JS, EXE, and so on) as Attachments, Documents, or ContentVersion records, preventing stored XSS and malware distribution through Salesforce files.
            • Prevent Download of Custom File Types Control
              Organization‑level control that blocks users from downloading specified high‑risk or sensitive file extensions stored as ContentVersion records, preventing abusive or unintended downloads of dangerous or regulated file types.
             
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