By providing copy of leak, Intercept likely accelerated ID of contractor.
How a few yellow dots burned the Intercept’s NSA leaker | Ars Technica
It’s useful to remember now and then that color printers insert in every page they print an almost invisible watermark made of tiny yellow dots that allow to discover who and when printed that sheet.
Scary, isn’t it?
I wonder if it also apply when you print black’n’white. Today I’ll try with the Ricoh Aficio at work