SquareX File DLP is a browser-based data loss prevention solution that provides context-aware control over file uploads and movements. The solution operates directly within the browser to enforce granular policies based on file source, destination, and content. The platform includes identity context awareness, enabling policies that differentiate between corporate and personal accounts on the same service. For example, it can allow file uploads to Google Drive only when users are logged into their corporate account while blocking uploads to personal accounts. The solution includes an AI-powered policy generation copilot that creates policies from natural language prompts. Administrators can generate policies by describing the desired control in plain text, such as blocking source code uploads to unauthorized sites. File DLP capabilities include blocking uploads based on multiple criteria: file type (such as executable files), file content (such as credit card information), destination characteristics (social networking sites, free hosting sites, unpopular domains), and connection security (HTTP vs HTTPS). The solution can also detect and block uploads to domains with unicode characters, typosquatting domains, and other potentially malicious sites. The platform provides visibility into user activity and identity context that traditional secure web gateways lack, enabling more precise control over sensitive file movements while maintaining access to approved corporate resources.