People use my bank card to buy bitcoin

1. A friend got bitcoin. Bitcoin itself is normal, and anyone can register it. In fact, he is using your account to make money. There is nothing against the law. As long as you buy and sell coins in a regular way, the platform is still trustworthy. If you refuse to buy and sell coins regularly, will you be banned, So there's nothing against the law. You think too much.

2. First of all, I must tell you that in China, it is not illegal for indivials to buy or sell bitcoin, that is to say, it is not illegal for you to hold a bitcoin
secondly, if he just bought it and put it away, it's OK. If he has other uses, there may be some risks.

3. There is no clear legal definition. Bitcoin is still a private proct. Bitcoin itself is not a formal currency, and there is the concept of no national boundaries in bitcoin, so many countries do not recognize it. Including China. Therefore, in the process of the transaction or the subsequent risks are only borne by the participants themselves. If bitcoin collapses one day, no country will rescue it.

4. No matter whose mobile phone you log in, you only need to log in, use your account, and then buy the special can be used.

5. It is suggested that you do not give the bank card handled with your ID card to others. If the other party does something illegal with this bank card, it is likely to involve you. ID card and bank card are important documents with personal information. It's better not to lend them to others.

6. If he has a purpose for you, it may involve some personal aspects. Be careful. If the hacker wants to attack you, it's very easy

7. Everyone has a quota limit every year. Now there is big data. If something happens, you need to take responsibility for it

8. No, China's foreign exchange management stipulates that an indivial's foreign exchange transaction should be $50000 a year, so if he needs more dollars, he needs to ask others to help him buy them.