First of all, I will explain the three passwords of Guo Xin Securities: handling the securities account of Guo Xin Securities involves three passwords, namely, bank card password, fund password and transaction password. Because investment securities need to be bound by the third party of the bank, the bank password should be clearly stated together. The bank password is the password you use when you use the bank. In the bank-securities transfer, you need to use the bank card password to transfer money from the bank. The fund password and transaction password are the passwords you set when you open an account with Guosen Securities. The fund password is the password you use when transferring money from securities to the bank. The trading password is the password you use when you log in to Guoxin Securities trading market, and it is also used when you entrust stock trading. When setting, for convenience, it is best to set three passwords as the same password to avoid confusion. Then let's talk about the modification of these three passwords: bank card password modification is something that banks need to manage. According to the specific bank's own regulations, it can be modified at the counter, by telephone or online. In Guo Xin Securities, the modification of fund password and transaction password can usually be realized in the following three ways: counter handling, online handling and telephone handling. To handle the counter, you need to bring your ID card and shareholder account card to any business department of Guo Xin Securities, and the staff will provide you with a list to fill in, just do as they say. Online entrustment can log in to the Guo Xin stock exchange market, and click Modify Password. For telephone entrustment, you can call 95536 and follow the voice prompts. If you encounter other problems, you can consult the human service. Finally, if you forget the fund password and transaction password of Guo Xin Securities, there is no other way except to bring your ID card, shareholder account card and other related materials to the counter of Guo Xin Securities.