It will be very difficult to track that kind of behaviour and to know what's happening in somebody's home. It would be quite difficult. But if that copy were uploaded onto the Internet somewhere, even if it were in image format, not text format, there are OCR, or optical character recognition, technologies that could locate that. So there are tools that could try to monitor it to help facilitate that process, but it would be very difficult to figure out what's happening in people's private homes.
On May 11th, 2018. See this statement in context.