SWIFT (Worldwide Interbank Financial Telecommunication Association) is a professional cooperative organization with membership, which is responsible for the formulation, transmission and conversion of international interbank payment information message standards, and its headquarters is in Brussels, Belgium. SWIFT is mainly controlled by American and European countries, and it is forbidden for a certain country to use SWIFT, which can be said to be a "financial nuclear bomb" in sanctions. The data shows that in 2020, about 38 million transactions will be exchanged through the SWIFT platform every day, resulting in trillions of dollars worth of transactions. SWIFT is an information transmission system, which does not involve cross-border capital flow, and is not a clearing system, a settlement system or even a trading system. Therefore, SWIFT can't actually stop the execution and completion of transactions, but only make the transactions of Russian banks more complicated. Prior to this, only two countries were kicked out of the swift system. That is Iran and North Korea. As far as these two countries are concerned, the lack of swift system is not a matter of life and death, but the loss of contact with most international financial transactions has indeed caused economic losses.

Yi Hao, a researcher at China Banking Research Institute, said in an interview that digital currency, the central bank, would attack the SWIFT system. Digital currency, the central bank, is a great improvement on the existing electronic payment system. On the one hand, in the field of cross-border settlement, digital currency, which is based on blockchain, has increased the existing SWIFT settlement time from a few days to a few seconds, greatly improving the settlement efficiency. On the other hand, it reduces the cost of cross-border transfer. The changes brought about by technological progress cannot be suppressed by political intervention. The last digression, 20 14 European and American sanctions against Russia, has strengthened the adjustment of Russia's grain and foreign exchange structure. Russia has now become the world's largest wheat exporter, with US dollar assets basically cleared and a large number of euro assets allocated.