|(1) A counterfeit part type.
See: Recycled Part, Remarked Part, Overproduced Part, Out-of-spec Part, Cloned Part
Note: “Tampering can be done during any phase of the life cycle of a component. It can either be on the die level (“hardware Trojan”) or package level. Such components can either act as a silicon time bomb where the device can behave differently under certain conditions or act as a backdoor where secret information from the chip can be sent out to an adversary. In both cases, the chip behaves outside of its specification, and thus we have included such ICs as counterfeit parts. A detailed taxonomy for tampering a device by hardware Trojans can be found in.”
Additional reading: Tehranipoor M, Koushanfar F (2010) A survey of hardware Trojan taxonomy and detection. IEEE Des Test Comput 27(1):10–25"