We have a security system installed that takes pictures of the client user's screen and sends them to a server. The pictures are saved until they get to the point where they are old enough to be deleted. It's been useful for an investigative tool when we need to find out if a user has been up to suspicious activity. The majority of our users on our network are standard user accounts with no special access. With our machines being primarily Windows 7.
As an administrator of this system, I was wondering if this can potentially be "spoofed". As in, a user can exploit the client to send pictures of what he/she desires.
Edit : I'm referring to the user being able to exploit the system and send the image they want sent while doing something else. I'm not referring to being able to create a window in full screen mode.