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Machine binding is a software-binding or licensure-stopping software that works to prevent the software from being used on multiple computers.
Mechanisms for machine binding include building serial numbers into hardware that can be accessed and matched to serial numbers within the software to provide an authorization match.
Machine binding ties a licensure to a specific machine or user and is used for digital software distribution. It also prohibits changes in the system installed on a particular computer. Licensing activities can include the machine binding process. Machine-bound software can be highly tamper resistant.