A method for providing biometrical authentication, comprising: at an electronic device having one or more biometric sensors and a display: while displaying a device state indicator, wherein the indicator indicates whether the device is in a locked or unlocked state, detecting a request, which can be made while the electronic device is locked or unlocked, to perform a respective operation that the device is not authorized to perform while the device is locked; and in response to detecting the request to perform the respective operation: in accordance with a determination that the device is unlocked when the device detects the request to perform the respective operation and the request includes a swipe starting from an edge of the display of the electronic device, performing the respective operation; and in accordance with a determination that the device is locked and a first form of authentication is available for use, wherein the first form of authentication is a form of biometric authentication based on data obtained by the one or more biometric sensors, wherein the data corresponds to one or more facial features, displaying , on the display, an authentication indicator for the first form of authentication without displaying one or more affordances for using a second form of authentication. while displaying a device state indicator, wherein the indicator indicates whether the device is in a locked or unlocked state, detecting a request, which can be made while the electronic device is locked or unlocked, to perform a respective operation that the device is not authorized to perform while the device is locked; and in response to detecting the request to perform the respective operation: in accordance with a determination that the device is unlocked when the device detects the request to perform the respective operation and the request includes a swipe starting from an edge of the display of the electronic device, performing the respective operation; and in accordance with a determination that the device is locked and a first form of authentication is available for use, wherein the first form of authentication is a form of biometric authentication based on data obtained by the one or more biometric sensors, wherein the data corresponds to one or more facial features, displaying , on the display, an authentication indicator for the first form of authentication without displaying one or more affordances for using a second form of authentication. in accordance with a determination that the device is unlocked when the device detects the request to perform the respective operation and the request includes a swipe starting from an edge of the display of the electronic device, performing the respective operation; and in accordance with a determination that the device is locked and a first form of authentication is available for use, wherein the first form of authentication is a form of biometric authentication based on data obtained by the one or more biometric sensors, wherein the data corresponds to one or more facial features, displaying , on the display, an authentication indicator for the first form of authentication without displaying one or more affordances for using a second form of authentication. <EOS>