| CPC G06F 21/32 (2013.01) [G06F 3/016 (2013.01); G06F 3/04883 (2013.01); H04L 9/3231 (2013.01); G06F 2221/2117 (2013.01)] | 36 Claims |

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1. An electronic device, comprising:
a display;
a button;
one or more biometric sensors separate from the button;
one or more processors; and
memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for:
while displaying a first user interface that does not correspond to a respective function and while the electronic device is in a first state in which the respective function of the electronic device is disabled, detecting one or more activations of the button; and
in response to detecting the one or more activations of the button:
ceasing to display at least a portion of the first user interface;
displaying a second user interface that corresponds to the respective function; and
capturing, with the one or more biometric sensors that are separate from the button, biometric data;
in accordance with a determination that the biometric data satisfies biometric authentication criteria, transitioning the electronic device to a second state in which the respective function of the electronic device is enabled and displaying a representation of a user credential, wherein the user credential is restricted from being used without proper biometric authentication; and
in accordance with a determination that the biometric data does not satisfy the biometric authentication criteria, maintaining the electronic device in the first state and displaying, on the display, an indication that biometric authentication has failed.
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