Challenger has been developed for local data protection and communication in closed networks. It excels not only through its secure encryption algorithm but also through its ease of use.
Irrespective whether Challenger is used in the normal multi-user function on the hard drive or as a portable version, in both cases all types of data on any type of storage device can be encrypted. The encrypted data can be securely stored on a network or online. Even when companies such as Microsoft or Google offer a guaranteed centrally controlled on-line encryption, with Challenger you have your own tool.