Systems and methods of secure data exchange

A secure exchange server is hosted by an intermediate business entity. A user login data authentication procedure allows users to access the secure exchange server through a client computing device. Communications between the secure exchange server and the users is through a communications network, wherein the users comprises a user of a second business entity. The secure exchange server provides a data chunking facility to receive and segment computer data content transmitted from a client computing device. The received computer data content is stored as a plurality of encrypted computer data content segments. Computer data content is received from the user of the second business entity and the data content is segmented and each computer data content segment is separately encrypted to form a plurality of encrypted computer data content segments. The secure exchange server may preferably store the segments using a mapping facility to store the memory location for each segment. The aim is to allow secure collaborative working between users that may be from different business entities.