An apparatus that operates, by default, at a functional operational level that excludes any service or functionality other than a default set of services or functionality, the apparatus comprising: a memory resource; a controller; a resource utilization component adapted to manage use of a set of replaceable resources; wherein the controller is adapted to, in response to a trigger, wherein the trigger is a powered on event or a polling event: determine whether each replaceable resource in a set of replaceable resources originates from a desired source; provide an auxiliary service or functionality on the apparatus when each of the set of replaceable resources originates from the desired source, and preclude use of the auxiliary service or functionality when any of the set of replaceable resources is not determined to originate from the desired source, wherein each of the replaceable resource in the set of replaceable resources is subject to an authentication process that identifies a certificate for the replaceable resource, and wherein the controller is to determine that each of the replaceable resource originates from the desired source by determining whether the certificate is stored in the memory resource of the apparatus, and is valid or active; and is further adapted to in response to determining that each replaceable resource in the set of replaceable resources originates from the desired source, providing at least a first auxiliary resource or functionality to the apparatus so as to change the operational level of the apparatus from the default operational level to an enhanced operational level. a memory resource; a controller; a resource utilization component adapted to manage use of a set of replaceable resources; wherein the controller is adapted to, in response to a trigger, wherein the trigger is a powered on event or a polling event: determine whether each replaceable resource in a set of replaceable resources originates from a desired source; provide an auxiliary service or functionality on the apparatus when each of the set of replaceable resources originates from the desired source, and preclude use of the auxiliary service or functionality when any of the set of replaceable resources is not determined to originate from the desired source, wherein each of the replaceable resource in the set of replaceable resources is subject to an authentication process that identifies a certificate for the replaceable resource, and wherein the controller is to determine that each of the replaceable resource originates from the desired source by determining whether the certificate is stored in the memory resource of the apparatus, and is valid or active; and is further adapted to determine whether each replaceable resource in a set of replaceable resources originates from a desired source; provide an auxiliary service or functionality on the apparatus when each of the set of replaceable resources originates from the desired source, and preclude use of the auxiliary service or functionality when any of the set of replaceable resources is not determined to originate from the desired source, wherein each of the replaceable resource in the set of replaceable resources is subject to an authentication process that identifies a certificate for the replaceable resource, and wherein the controller is to determine that each of the replaceable resource originates from the desired source by determining whether the certificate is stored in the memory resource of the apparatus, and is valid or active; and is further adapted to in response to determining that each replaceable resource in the set of replaceable resources originates from the desired source, providing at least a first auxiliary resource or functionality to the apparatus so as to change the operational level of the apparatus from the default operational level to an enhanced operational level.