JAVA from SunThe FileTransfer.com application is implemented in SSL (Secure Sockets Layer) for secure and encrypted interaction with our servers. Filetransfer.com is at its core a server-centric, globally deployed database driven software application accessible by either human clients (via a browser) or other computer clients (via web services). After comprehensive system design and planning we built the server-side subsystems, then ensured that the handling of file storage and transfer was secure and consistent. We then custom built accounting systems for traffic, storage, and financial transactions. Then we focused on the client experience built atop the platform.
Filetransfer.com has been tested with these browsers...:

FireFox
(Mozilla)

Internet
Explorer 7

Internet
Explorer
Safari
Browser

Opera
Browser
Filetransfer.com has a CS|SC (client to server to server to client) architecture.
The website front-end of FileTransfer.com was developed for secure, easy, and intuitive use. Really it is a front-end software to access a global network of our custom built servers. A FileTransfer user can log into our servers in the USA, in China, in Europe or elsewhere and have access to their files, contacts, logs, and other information.
We went to great lengths to design and implement a very secure and highly flexible storage system that at the same time protects user data on each individual server while giving the authenticated user option to dynamically use space in any region of the world.
Our transfer and sharing tools enable easy collaboration and our built in security and DataLock features give users the option to protect their data and block unauthorized access.
FileTransfer.com is built on the FreeBSD operating systems, using MySQL as its database, PHP, Pearl, JAVA, ECMA Script, AJAX, XML, CSS, and other languages / protocols.
We have custom built subsystems for server monitoring and security.