Tracing Paper: Color printers mark printouts with barely visible codes that are used to track down currency counterfeiters, as well as everyone else. logicmag.io Submitted by oolong on April 7, 2021 at 6:04 AM in articles 1 comment 6
Dogmantra wrote on April 8, 2021 at 5:13 AM #11,313 yeah this stuff is very scary it also makes me wonder if some malfunction with this is why all my printouts recently seem to have a little bit of yellow smudged right on the margins, hmm. 2
Tracing Paper: Color printers mark printouts with barely visible codes that are used to track down currency counterfeiters, as well as everyone else.
Dogmantra wrote
yeah this stuff is very scary
it also makes me wonder if some malfunction with this is why all my printouts recently seem to have a little bit of yellow smudged right on the margins, hmm.