On my iMac, I keep a lot of supervision windows (displaying alarms and trends). These windows lead to priviledged access to very sensitive equipments. I would like to protect this iMac from any accidental typing on the keyboard or mouse mouve, and password protect it from any other local access.
I would like to be able to start my screen saver (which will lock my mouse and keyboard by asking my password), but to keep a full acces to the actual display.
Is there any way to make a transparent locked screen?