Visual Spoofing: Very interesting idea and demo. The power is in its simplicity. It won’t fool everyone, but probably enough.
The problem with visual spoofing is that it is difficult to fix with a simple patch. Yes there are ways to fix the problem partially, but I don’t see a way to remove the problem completely because hackers can still create a page with images of overlapping windows to distract the clueless user who tend to keep many windows open.
Good thing Don is one of the good guys.