Over 100 central banks around the globe are exploring central bank digital currencies (CBDCs) to modernize payment systems. They aim to explore potential benefits, risks, and the broad range of new capabilities CBDCs might offer. Some view CBDC exploration as an opportunity to rethink their existing, legacy payment systems and build a resilient and secure infrastructure using modern technologies. However, a CBDC creates a vast and complex ecosystem that amplifies existing risk exposures and surfaces new ones. Given the implications of issuing a CBDC, it should be seen as a fundamental change in the way the central bank operates. This note considers experiences from live CBDCs and is informed by experiments conducted by central banks and international institutions for domestic use. It also draws from cybersecurity and resilience frameworks from standard-setting bodies.
Many central banks are currently exploring the possibility of issuing retail central bank digital currency (CBDC). While the primary objective varies between jurisdictions, many central banks consider improved cross-border payments as a potential benefit and previous work has shown that CBDC can help overcome some of the frictions in cross-border payments. CBDC is a safe and liquid asset reducing the number of financial intermediaries and the settlement risk. Designing CBDC systems for cross-border payments is not fundamentally different from tailoring other payment systems. However, the roles and responsibilities might be slightly different in a CBDC system, and the central bank may play a more pivotal role given CBDC’s nature as public money as opposed to commercial bank money. This note draws lessons from ongoing experimentation and research to identify design and policy considerations when developing retail CBDC systems so it may be compatible for cross-border payments. The note focuses on retail CBDC—a CBDC primarily targeting households and non-financial firms—and leaves wholesale CBDC considerations for future work, although many of the discussions are applicable to wholesale CBDC and other forms of money as well.