If someone wants to use your bank card to open a securities account for stock trading, it is generally not illegal, mainly because he did not commit any illegal acts during the whole operation and did not participate in some insider trading. If we are involved in some money laundering or insider trading, or have any illegal acts, then we are likely to be involved, so we must pay special attention. We need to borrow a bank card to open securities and stocks, which must be someone we especially trust, and it is best to put the money into our bank card, so as to have better protection.

Under normal circumstances, if a friend wants to borrow our bank card to open a securities account for stock trading, we'd better not lend it to the other party, because there will definitely be corresponding risks. We'd better be careful so as not to bring ourselves some unnecessary trouble. We must have a clear mind and consciousness about some behaviors in life. Even though we are best friends, we must learn to say no. This is not only responsible for us, but also for each other.

Stock trading is a risky behavior. If someone wants to use our bank card to open an account for stock trading, the risk is obviously greater. We'd better not lend it to him, which is probably illegal. When we invest in stock trading, we must do what we can and choose according to our actual situation, and we can't blindly do something inappropriate.

When we are in contact with things related to investment or stock trading, we must be cautious. In this way, we can avoid falling into some unnecessary traps and our personal rights and interests can be better protected.