System and method for the authentication of components within a self-service machine

A self-service machine that evaluates the authenticity of peripheral devices of a self-service machine that has an operating system that provides a global mutex, having software layers that are arranged on the operating system, having processes that run on the self-service machine and that access the operating system and/or the software levels, wherein the self-service machine runs:

• a first process that performs an evaluation of the authenticity of a connected peripheral device and, if it was determined during the evaluation that the peripheral device could not be authenticated, sets the mutex;
• a second process that evaluates the mutex based on an event and, if the mutex is set, switches the self-service machine to an error state;
• wherein the mutex cannot be reset other than by the first process that set the mutex.