KB Kookmin Card files patent for hybrid digital asset payment tech

KB Kookmin Card has filed a patent application for a hybrid payment technology designed to expand the use of digital assets on its existing card payment infrastructure, Newsis reported. The technology would link a blockchain-based e-wallet address to a customer's credit card, enabling the use of both digital assets and credit without issuing a new card. Under the system, payments would first draw from the stablecoin balance in the user's e-wallet. If the balance is insufficient to cover the purchase, the transaction would automatically be processed as a standard credit card payment.