I am working in a government position where we regularly process confidential information. We are looking into a possible way to patch the analog-hole problem and discourage users from taking photos of their computer screen.
I was wondering if we could put a whitewashed watermark (that contains system data like the IP address, computer name, user name, etc.) on the display at all times. We are using only MS Windows hosts BTW.
We are aware that this would be somewhat counter-productive and that many users can skillfully remove the watermark using photo editing programs, but we don't have to simply "trust" every user (we have too many of them)