NCR’s HDE technology solution prevents any files being added to the hard disc. Both Remote BIOS Update and HDE will provide protection from common attempts of malware attacks on ATMs. Further NCR’s HDE provides a pre-boot network authentication for each terminal. The terminal will boot to the pre-boot environment which will use the network to contact the customer’s HDE server. If, and only if, the server authorizes it, will the system boot to the OS on that hard disk. Moreover, even if someone steals the whole PC core, motherboard and drive, they will not be able to access the contents on the hard disk drive.