It's known to not be the EURion constellation that image software uses, it's some secret proprietary mechanism. See http://www.cl.cam.ac.uk/~sjm217/projects/currency/ which is cited by the page.
0. http://lcamtuf.blogspot.fr/2014/11/pulling-jpegs-out-of-thin..., http://lcamtuf.coredump.cx/afl/, american fuzzy lop
1. http://news.cornell.edu/stories/2015/03/images-fool-computer..., Images that fool computer vision
http://www.dailymail.co.uk/news/article-2624697/Master-count...
Somehow I think it's not that simple, but also somehow I think that real counterfeiters will not be deterred by this manner of weak DRM.
And of course they will get caught and have their lives ruined. So by making the act of falling into the temptation a bit harder, you are keeping more honest people honest.
A few months ago, one of our Konica all-in-one units flat out refused to scan a customer invoice, claiming that it's illegal to scan banknotes.
In the Netherlands there is nothing illegal about copying money; what is illegal is spending it (or having it spent by someone else) as real money on purpose.
Idea behind that, I think, is that there is a gradual scale from real money to good counterfeit to lousy counterfeit to images of money printed in a journal or even on a coffee mug to basically whatever can be printed.
Though from what I understand, it's illegal to make copies (electronic or otherwise) of banknotes in both Scotland and the USA.
When I was recently in the US, I bought a novelty pad of oversized $100 bills from the Bureau of Engraving and Printing gift shop. It's obvious they're not real but they have all the hallmarks of a real bill - a serial number, same print, series number and even the phrase "THIS NOTE IS LEGAL TENDER FOR ALL DEBTS, PUBLIC AND PRIVATE". Even a fake (monochrome, scanned and non-reactive) security strip.
My fiancée bought a similar pad of oversized novelty £20 notes here a few years ago which were littered with the word "specimen" and small print stating that they were for novelty use only. Additionally, many government websites with images of banknotes here have the word "specimen" printed quite prominently on their images (except where the image is a photograph of a banknote in some setting, not stand-alone).