When you enable the "Bring Your Own Storage" solution, your data is persisted directly from the user's browser to your storage layer (such as AWS S3 or GCP Cloud Storage, in a bucket owned by you). When used with an embedded importer, Dromo does not have any access to user data at any point in the import process, but the import results are available to you in your cloud. The purpose of Bring Your Own Storage is to provide similar security benefits as a fully self-hosted solution at a fraction of the cost and with minimal additional overhead to manage.