Systems and methods for user verification may include processor(s) to maintain a plurality of authentication profiles for respective users, where each authentication profile includes profile image(s) and a device key linked to a respective client device. The processor(s) may receive a request including the device key of the client device and a biometric image captured during the session by a camera of the client device. The processor(s) may identify the authentication profile corresponding to the user based on the device key included in the authentication profile matching the device key included in the request. The processor(s) may compare feature(s) extracted from the biometric image to feature(s) extracted from the profile image(s), and store the biometric image in the authentication profile based determining that the feature(s) from the biometric image match feature(s) from a profile image of the authentication profile.