A software tool and method for performing a simulation of a circuit to automatically test a circuit design are disclosed. One of the peripherals is configured to signal an event to the interconnect, and one of the peripherals is configured to respond to a task signal from the interconnect by performing a task. The security action can be suppressing the representation of the audio data, encrypting the representation of the audio data, releasing the representation of the audio data, partially suppressing the representation of the audio data, partially encrypting the representation of the audio data, partially releasing the representation of the audio data, or a command.