Recently, while looking at the actions taken by central banks around the world, I’ve found that the question of what CBDC is has become increasingly worth delving into. In an era when cryptocurrencies and stablecoins are everywhere, central banks are responding to the digitalization wave with an entirely different logic.

So, what is CBDC? Simply put, it is a digital version of fiat currency issued by a central bank. It is not a newly created currency, but the digital form of the paper money in your hands—guaranteed and managed by the state. This is completely different from decentralized crypto assets such as Bitcoin and Ethereum. CBDC has a clear issuing party, operates within each country’s legal framework, and people and businesses can use it to make payments, transfer funds, or store value—just like cash, only fully digital.

From a technical perspective, many countries choose to build CBDC using blockchain or distributed ledger technology, but the key difference is that it maintains a centralized management model. This allows countries to control the money supply, monitor the flow of funds, and implement monetary policy. So, although it may look similar to cryptocurrencies from a technical standpoint, CBDC fundamentally lacks the characteristics of decentralization.

Now, more than 130 countries worldwide are researching or developing CBDC. This is not just talk. The Bahamas issued the sand dollar as early as 2020, becoming the world’s first CBDC, mainly to solve payment problems for remote islands. Nigeria followed in 2021 with the launch of eNaira, becoming a pioneer in Africa, with the goal of modernizing the financial system and reducing reliance on cash. Jamaica’s JAM-DEX and the Eastern Caribbean’s DCash have also already been put into use.

The moves by major economies deserve even more attention. China’s digital renminbi, e-CNY, is considered the largest CBDC project in the world. It has been tested in multiple cities and integrated into mainstream payment applications, used for shopping, public transit, and public services. India is piloting the digital rupee, and Brazil is developing the Drex project to connect digital financial ecosystems. Russia and the United Arab Emirates are also stepping up testing efforts, especially in cross-border payments. Developed economies such as the European Union, Sweden, South Korea, and Saudi Arabia are testing and refining their legal frameworks.

Why are countries so proactive? The reasons are clear. CBDC improves payment efficiency: transactions are faster, costs are lower, and it is not limited by banking working hours. In the era of e-commerce and the digital economy, this is crucial. For central banks, CBDC is a powerful tool for managing monetary policy. It enables real-time monitoring of fund flows, enhances financial transparency, and helps curb money laundering, tax evasion, and underground economic activities. It also allows financial support policies to be implemented more quickly and accurately.

But risks also cannot be ignored. Privacy is a major issue—without appropriate data protection mechanisms, there is a risk that all transactions could be monitored. The risk of cyberattacks and reliance on high-tech infrastructure are also factors that countries must carefully consider. There is another problem that is often overlooked: if people move large amounts of deposits into CBDC wallets managed by the central bank, commercial banks may face the risk of declining sources of capital, which could affect lending activities and financial stability. That is why designing a reasonable CBDC model is the key to successful implementation.

In essence, what CBDC is about is not just a technological trend, but a strategic transformation of the global monetary system. Against the backdrop of the growing popularity of cryptocurrencies and stablecoins, CBDC helps countries maintain their role in financial regulation while leveraging the advantages of digital technology to promote economic growth. In the future, CBDC will very likely coexist with cryptocurrencies and other forms of digital assets, forming a multi-layered and increasingly complex financial ecosystem. The pace of this change is faster than many people expect.