Abstract: A removable card-enabled BPID Security Device integrates a removable card reader with a biometric authentication component to provide secured access to electronic systems. The device allows for an individual to insert a removable card into an aperture in the physical enclosure of the BPID Security Device, allowing the removable card and the BPID Security Device to electronically communicate with each other. The BPID Security Device is based on a custom application specific integrated circuit that incorporates removable card terminals, such that the BPID Security Device can communicate directly with an inserted removable card. In an alternative embodiment of the invention, the BPID Security Device is based on a commercial off-the-shelf microprocessor, and may communicate with a commercial off-the-shelf microprocessor removable card receiver using a serial, USB, or other type of communication protocol.