Researchers from the University of Luxembourg, University of Ljubljana and the University of Vienna have created a new method that will produce unique reflecting patterns that can be used for a wide range of valuable objects. These patterns are not something that can be cloned or recreated and may hold the potential to be used in the identification of products without a doubt in order to prevent those who attempt to counterfeit. http://sciencenewsjournal.com/researchers-create-unclonable-patterns-helps-prevent-counterfeiting/ Paper: http://www.nature.com/articles/srep26840
I want to express my doubts in the "unclonable". All such patterns that were tried in the past were reproduced - sometimes not 100%, but good enough to fool people at least temporarily. These seems to be very hard to clone, but I'm very sure, if there is enough interest in cloning them, "good enough" copies will show up.
