iSIS aRMour

The Royal Mint (UK) has designed a new coin process said to make make forgery impossible.

2 minute video.

The technology, called iSIS, is apparently a special material that can be added to the aRMour technology that electroplates a 25 micron coating on coin blanks. No details on what the material is. A PDF nomination to the International Association of Currency Affairs I found online explained that there will be low speed 'simple iSIS' detectors at point-of-sale (in shops) as well as 'advanced iSIS' high speed detectors in banks.

The Royal Mint's iSIS page.