1. security considerations: bank accounts are sensitive information related to the identity of customers. In order to ensure the security of the account, the bank has taken strict audit measures. If you modify the account information at will, it will increase the security risk and lead to the account being stolen or misused.

2. Legal compliance requirements: According to relevant laws, regulations and regulatory requirements such as anti-money laundering and anti-terrorist financing, banks strictly review and manage changes in account information. Account information can only be modified under certain circumstances, such as invalid customer identity and change of household head.

3. Fraud risk prevention: The ownership of bank accounts is clear and definite, and once the account information changes, it will lead to disputes and disputes. In order to avoid the risk of fraud and improper operation, the bank restricted the change of account information.