Real-time user authentication using integrated biometric sensor

A computing device includes a housing, a processor, memory, a human interface device (i.e., a keyboard or a trackpad), and a biometric sensor integrated into the housing. The biometric sensor is configured for capturing biometric data (i.e., heartbeat data or a vein scan) from one or more of hands of a user of the device while the user's fingers are interacting with the human interface device. The memory stores executable instructions that, when executed by the at least one processor, cause the computing device to: compare the captured biometric data to one or more records of biometric data associated with the user; determine, based on the comparison, whether the captured biometric data satisfies a matching condition with the one or more records of biometric data; and authenticate the user, when the captured biometric data satisfies the matching condition.