Waha SE (Security Engine), A Digit Content Security Engine is being studied and developed under DRM (Digital Rights Management) structure. It provides the products that would secure digit content. Except for each function of DRM, Waha SE has its own patent, such as file auto-deletion and security key. Both Waha SE and DRM not only provide each security function for users but also protect digital content and copyright maintenance through its technology. The differences are, however, Waha SE provides the protection for most types of file formats as well, and is not limited to OFFICE or PDF files. It has multiple applications such as combining with software/hardware products, business file management, business digit copyright management, server management, client file management, un-presented ideas such as music, movie and art design.