Physical access to the computer room is via two wooden doors, equipped with an audit access control system based on encoded magnetic keys. Entry into this room is logged and monitored full-time using video camera's. Access is restricted to authorised personnel of the NIKHEF Computer Technology Group.
The machine containing the encrypted activation tokens has no connection to any electronic network. The enabling of the system is secured by a `BIOS' password of seven characters. The machine is configures to boot only from its internal, non-removable media. Removable media systems attached to the machine are an Iomega ZIP drive and a CD-ROM; these are not configured for booting.