CtrlARM is a web-based application that is totally secure defense against unauthorized file access. Authorized users can also View, Modify and Save MS Office files. It can also View PDF and most types of media files. CtrlARM uses a proprietary and secure data encryption methodology based on AES-256 to manage, on a continuing basis, a file as it evolves over its lifespan. It is the best application for a secure file exchange service.