| ▲ | krupan 2 days ago | |
The tracking dots aren't for anti-counterfeiting. The secret service has a separate chunk of code in every color printer that detects if you are printing money and prints out a page that says essentially, "you can't do that." (at least that was the case 20 years ago when I worked for HP). The tracking dots are used by the FBI if someone prints out classified information and passes it around, or other copyrighted/illegal documents. | ||
| ▲ | Doxin a day ago | parent [-] | |
The EURion constellation[0] is how that detection mostly works as I understand it. Neat bit of tech. It's real obvious on euro bills once you know what to look for. Fun fact: not all printers give a hoot about this pattern, so it's a neat trick to annoy people with if your printer doesn't. | ||