US Patent 11947655 Secure authentication using companion trust

A computing device may authenticate a user of the computing device as an authorized user. The computing device may, in response to authenticating the user of the computing device as the authorized user, transition from a locked state to an unlocked state. The computing device may, in response to authenticating the user of the computing device as the authorized user, determine one or more computing devices that are proximate to the computing device. The computing device may, in response to determining the one or more computing devices that are proximate to the computing device, send to each of the one or more computing devices an indication of successful user authentication by the computing device to enable each of the one or more computing devices to transition from the locked state to the unlocked state without performing user authentication.