Cloud One —-File Storage Security scans files uploaded to S3 buckets, which are the logical systems that Amazon uses to store objects and files. When it sees a new file upload, Cloud One - File Storage Security scans it for known malware signatures, polymorphic variants, and obfuscated malware. The service supports various files, including JPEGs, MP4 media files, PDFs, and compressed ZIP files. After completing a scan, the service tags the file with the scan results, and admins can then configure actions based on those results, such as sending an email or calling another serverless function. This enables admins to move a file to a different S3 bucket or delete it altogether, allowing for the creation of post-scan plugins for common operations.