You can control access to your runtime platform by setting your project to open in kiosk mode at startup. In addition, you can control access to the operator views of your project by setting access rights.
Note that some operating system keyboard commands are still accessible in kiosk mode. Some keyboard commands can allow the user to exit kiosk mode. Once a user has access to the portal pages, they can grant themselves access rights to any operator view of a project on the runtime platform. Therefore, enabling kiosk mode and setting access rights for operator views should be considered deterrence measures.