Patent attributes
Electronic system for authenticating a user of an electronic service, said system preferably comprising at least one server apparatus, the system being configured to store, for a number of users, a plurality of personal voice-prints each of which being linked with a dedicated visual, audiovisual or audio cue, for challenge-response authentication of the users, wherein the cues are user-selected, user-provided or user-created, pick, upon receipt of an authentication request associated with a claim of an identity of an existing user of said number of users, a subset of cues for which there are voiceprints of the existing user stored, and provide the cues for representation to the user as a challenge, receive sound data indicative of the voice responses uttered by the user to the represented cues.
