the provident fund blue U-Shield is a special USB key, which is used for the safe management and operation of personal accounts of housing provident fund. Blue U-Shield adopts international standard SIM card chip technology, with high-strength encryption function and anti-counterfeiting ability, which can ensure the security and uniqueness of user identity. Blue U-Shield is widely used for authentication and transaction authorization in various fields such as banking, securities, insurance, taxation, social security, etc. In the housing provident fund system, the following operations can be performed by using the blue U-Shield:

1. Inquire about the personal provident fund deposit information

2. Handle the personal provident fund withdrawal business

3. Make online personal provident fund deposit declaration. It should be noted that the blue U-Shield needs to apply to the housing provident fund management center and go through relevant procedures before it can be used normally. At the same time, when using the blue U shield, it also needs to be properly kept to avoid being lost or used maliciously by others, so as to ensure the security and reliability of the provident fund account.