A hijack blade allows its user to seize control of a machine. A sharpened beam of obrinium, it can easily sever or puncture any machine, almost certainly coming into contact with wiring thereof on its way through. At the instant of contact with an electronic system of a machine, a hijack blade can send a set of commands to it via the tens of thousands of electrical contacts exposed along the main grind of the blade.
To allow for such control, the operating systems of all known military machines are known to any ENDWeapon with a hijack blade. Depending on the level of security, such an ENDWeapon may also be able to infect a machine whose operating system is not known to it during the fraction of a second that the blade is passing through the machine. If not, the ENDWeapon may in stead thrust its hijack blade into the machine, leaving it there until the desired command is relayed.
While ENDWeapons already require supercomputers for environmental data processing and CSA command interpretation, they are also necessary for any ENDWeapon with a hijack blade. A supercomputer allows the ENDWeapon to translate raw human thought into the appropriate code necessary to command a machine of which the ENDWeapon wishes to override control.
To allow for effectiveness of the Dreadnought Contingency while maintaining ENDWeapon security, each ENDWeapon has its own Dreadnought Nervous System. A network of wiring extending throughout the entirety of the Weapon, the Dreadnought Nervous System allows a Dreadnought Contingency Agent to make use of its hijack blades against the ENDWeapon by providing a line of control capable of overriding an ENDWeapon's CSA, while only being able to be used by a Dreadnought Contingency Agent.