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When Color laserjet copiers first started being manufactured to the present quality that they are now I understand that the Treasury Dept requested manufacturer
by unics 12y ago
When Color laserjet copiers first started being manufactured to the present quality that they are now I understand that the Treasury Dept requested manufacturers to include serial numbers in printed copy to track forgers of currencies. Microscopic serial numbers can be found within images interspersed throughout the image.
- cyphunk 12y agoThe 21C3 lecture from Stephen Murdochs on reverse engineering photoshop and printers attempting to detect currency also of interest. http://www.cl.cam.ac.uk/~sjm217/projects/currency/ http://www.cl.cam.ac.uk/~sjm217/projects/currency/ http://events.ccc.de/congress/2004/fahrplan/event/108.en.html http://events.ccc.de/congress/2004/fahrplan/event/108.en.htm...
- deleted 12y ago[deleted]