Or... just add a privacy filter to the display. http://www.google.com/search?q=privacy+filter+display http://www.google.com/search?q=privacy+filter+display No n

Or... just add a privacy filter to the display. http://www.google.com/search?q=privacy+filter+display http://www.google.com/search?q=privacy+filter+display No need for webcams, special software that needs to run on all possible OS'es etc.