There are five risks in the use of Bitcoin:

(1) Policy risks. The decentralized nature of Bitcoin may threaten the traditional monetary system, affect the government's macro-control capabilities and reduce fiscal revenue;

(2) Legal risks. At present, Bitcoin is only protected by the laws of various countries as a virtual commodity rather than a currency;

(3) Speculation risk. Bitcoin does not have national credit or physical assets as protection, and the price may fluctuate sharply, which is extremely risky for investors;

(4) Money laundering risk. Bitcoin has the characteristics of anonymity and freedom from geographical restrictions. It is difficult to monitor the flow of funds, and it will be very easy to circumvent government supervision;

(5) Substitution risk. Bitcoin still has defects such as lack of credit guarantee, poor security performance and easy to cause deflation. At the same time, it has to face the competition of various emerging altcoins, and there is a greater risk of substitution.