A method, comprising: at an electronic device with one or more processors, memory, a display, and a biometric sensor: storing a set of one or more credentials; displaying a form with a plurality of fields; determining whether at least one field from the plurality of fields corresponds to one or more credentials of the set of one or more credentials; in accordance with a determination that at least one field corresponds to the one or more credentials of the set of one or more credentials, displaying a prompt requesting an input to automatically fill in the form with the one or more credentials of the set of one or more credentials; receiving the input to automatically fill in the form with the one or more credentials of the set of one or more credentials; in response to receiving the input to automatically fill in the form: in accordance with a determination that biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is associated with a user who is authorized to use the set of one or more credentials, filling in the form with the one or more credentials; and in accordance with a determination that the biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is not associated with a user who is authorized to use the set of one or more credentials, forgoing filling in the form with the one or more credentials. storing a set of one or more credentials; displaying a form with a plurality of fields; determining whether at least one field from the plurality of fields corresponds to one or more credentials of the set of one or more credentials; in accordance with a determination that at least one field corresponds to the one or more credentials of the set of one or more credentials, displaying a prompt requesting an input to automatically fill in the form with the one or more credentials of the set of one or more credentials; receiving the input to automatically fill in the form with the one or more credentials of the set of one or more credentials; in response to receiving the input to automatically fill in the form: in accordance with a determination that biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is associated with a user who is authorized to use the set of one or more credentials, filling in the form with the one or more credentials; and in accordance with a determination that the biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is not associated with a user who is authorized to use the set of one or more credentials, forgoing filling in the form with the one or more credentials. in accordance with a determination that biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is associated with a user who is authorized to use the set of one or more credentials, filling in the form with the one or more credentials; and in accordance with a determination that the biometric input captured based on the input to automatically fill in the form includes a set of biometric information that is not associated with a user who is authorized to use the set of one or more credentials, forgoing filling in the form with the one or more credentials.