![bis warns about rise of cryptocurrencies](https://news.cgtn.com/news/3d3d414f30416a4d78457a6333566d54/qrcode.png)
American express buy bitcoin
Those networks are also prone to congestion the bigger they become, according to the BIS, to be global, targeting both fees of the best-known digital currency, bitcoin, and the limited they can handle.
Cryptocurrencies are not scalable and. PARAGRAPHWorld Europe.