A financial transaction apparatus (30) includes a financial transaction machine (32). The machine includes devices (34) including transaction function devices (42, 44, 46, 48) for carrying out operations associated with financial transactions. The terminal also includes an imaging device (50) and an audio input device (52), as well as a visual output device (36) and an audio output device (54). Terminal (32) is connected to a computer (68) which has an associated data store (70). The data store includes user data including image data and voice data corresponding to authorized users. The identity of a customer operating the machine is determined by resolving first identity data based on image signals from the imaging device which correspond to a user's appearance. Second identity data is resolved by the processor from voice signals from the audio input device corresponding to the user's voice. The computer enables operation of the transaction function devices if the level of correlation between the first and second identity data is sufficient to establish that the image and voice signals originate from a single authorized user.