Transactis successfully launches its 2020 NAC (New Cryptographic Architecture) pilots



Twenty years after NAC 2000, the Bank Card Economic Interest Group (Groupement d’intérêt économique Cartes Bancaires) has defined a new cryptographic architecture, called “Nac2020”, to protect against the risk of fraud.


With combating fraud a major issue for banking institutions, this advance will strengthen security throughout the entire ecosystem of transactions carried out on ATMs. On the one hand, it guarantees cardholders that their banking information will remain secure on ATMs, and on the other, it reinforces the levels of security when transmitting and using the data needed to process a withdrawal transaction.


It was therefore key for players in the payment field to meet the needs for changes in cryptographic mechanisms and the new standards in terms of payment card security.


It is in this context that Transactis has taken over the management of this new regulation on behalf of La Banque Postale, Societe Generale and Crédit du Nord.


Over two years, in partnership with software providers NCR Corporation – for the software deployed on ATMs, Sopra Banking Software – for ATM management software, Atos – for the cryptographic solution, as well as ATM manufacturers NCR Corporation and Diebold-Nixdorf, Transactis has designed and built a solution to:

  • Encrypt exchanges between ATMs and the systems used to process an ATM transaction while complying with the new “NAC2020” standards;
  • Upgrade the ATM operating system (Windows 10) to enhance its security.


Since August 2021, with the help of Transactis, La Banque Postale and Crédit du Nord have rolled out a dozen pilot ATMs with the “Nac2020” solution, thus making them two of the market’s leaders in this migration project.