Anbound has long suggested that China's Central Bank to ban Bitcoin. Recently, theBank for International Settlements (BIS) also expressed its position that there is "strong case" for policy intervention in cryptocurrencies because they have direct links with the existing financial system and the supervisory regulators have the duty to protect investors and consumers. BIS believes that Bitcoin is "a combination of a bubble, a Ponzi scheme and an environmental disaster", and it is necessary to prevent cryptocurrencies from becoming "parasites" of the existing financial infrastructure.