A "hot wire (Bypass)" refers to a method used to temporarily connect electrical circuits, allowing current to flow without going through the normal control mechanisms. This technique is often employed in troubleshooting or testing electrical systems, enabling technicians to diagnose issues quickly. In automotive contexts, a hot wire bypass can be used to start a vehicle without a key, often for diagnostic purposes. However, this practice can also be associated with theft, as it bypasses the vehicle's security systems. Proper precautions should be taken to ensure it is used responsibly and legally.