ATT’s technologies is developed for the world of banknotes primary for our partner the Banque de France.

Our SEALgn@ture® is a PUF (physical unclonable function) technology – which distinguishes a genuine article from a fake one. We embed this unclonable seal on banknotes, hidden in the background design and used as a Level 3 security (forensic) authenticator by central bank inspectors.

ATT is also developing future technologies that will enable authentication to be carried out by using a simple smartphone (level 2).