UBS, a leading global financial services company, PostFinance, the financial services arm of the Swiss postal system, and Sygnum, a digital asset bank, have successfully collaborated to conduct cross-bank payments using the Ethereum blockchain, marking a significant milestone in the integration of traditional banking systems with innovative blockchain technology. This initiative not only highlights the growing acceptance of cryptocurrencies and decentralized finance within established financial institutions but also demonstrates their commitment to leveraging cutting-edge solutions to enhance the efficiency and security of cross-border transactions.
source: https://www.coindesk.com/business/2025/09/16/ubs-postfinance-and-sygnum-do-cross-bank-payments-on-a-public-blockchain