A device for protecting data for operating or controlling functions of an operating system, process, equipment, and/or a machine, which is stored in a switching arrangement that consists of electronic components and a processor, wherein the switching arrangement is mounted on a printed circuit board inside a housing or is embedded by an insulating material. A pickup or sensor, which is electrically conductively connected with the switching arrangement, is arranged along the walls on the inside of the housing, is embedded in the walls of the housing, or is arranged inside the insulating material.