US Patent 9596216 Systems and methods for secure cloud-based media file sharing

Cloud-based systems and methods to securely share electronic files use a cloud or virtualized server to handle management tasks related to file sharing, while file storage is maintained securely by servers that are not part of the cloud. The content of the file to be shared is not transmitted to or by the cloud. Share requests from file senders, notifications to target recipients, and retrieve requests from target recipients are transmitted to and/or by the cloud.