Copiers / Scanners Phoning Home for Copy Protection

[Tim Schwartz]

Hola-

Has anyone seen reference to a copier or scanner phoning home when it scans in a particular symbol (i.e. a document that shouldn't be copied). 

I was thinking like the EURion symbol on currency (https://en.wikipedia.org/wiki/EURion_constellation), if the firmware detected a certain pattern in a file, it could possibly ping a host as encoded in the image. Something like using microdots as QR codes for copy protection or akin to a physical version of a PDF or Powerpoint secretly calling home when someone attempts to copy it. 

I just imagine it exists by now inside some government agency, but i've never heard about it. 

Thanks for lending me your brains.

Tim