An attacker exploits weaknesses in the physical hardware of a machine in
						order to gain unauthorized access to the device or system. Hacking hardware
						devices falls into several broad categories depending upon the relative
						sophistication of the attacker and the type of systems that are targeted.
						Attacks against hardware devices differ from software attacks in that
						hardware-based attacks target the chips, circuit boards, device ports, or
						other components that comprise a computer system or embedded system. The
						most common hardware devices which are attacked are computer systems such as
						laptops, desktops and server platforms. Simple attacks may range from
						inserting an unauthorized USB drive into a system or using a Boot disk or CD
						to gain access to an unprotected system. Other more sophisticated attacks
						may involve adding or removing jumpers to an exposed system, or applying
						sensors to portions of the motherboard to read dataas it traverses the
						system bus.