According to a press release dated 2 September 2015, the Bank of England announced that the next 20-pound banknote will be printed on polymer, a substrate that is more secure, durable, and cleaner than traditional security paper. In December 2013, the bank announced that the next 5- and 10-pound banknotesRead More…

The BBC has a very interesting article dated 25 June 2015 by Chris Baraniuk entitled “The secret codes of British banknotes,” which discusses the so-called EURion Constellation (aka Omron rings) patterns’ role in deterring digital counterfeiting. Unmentioned in this article is that the simplest way to defeat this anti-counterfeiting featureRead More…