US Patent 7503481 Automated banking machine with improved resistance to fraud

Apparatus and method for detecting and interfering with an unauthorized device attempting to acquire user identification information at cash dispensing automated banking machine. The apparatus includes a sensing device enabled to detect RF or other radiation transmitted from the unauthorized device in a proximity of the machine. A controller causes the machine to take at least one action responsive to detection of the unauthorized device. The action may include generating a warning screen on the machine display, capturing an image, sending a message to an entity at a remote location, or emitting interfering radiation from an emitter.