Do I have to go to the bank to apply for a U shield?

I have to. U shield can only be applied at the place where the account is opened. Because you can only apply for a U shield after opening an account normally, if you don't open an account normally, there is no way to apply for a U shield. Youdun is an online payment security service launched by the bank, which provides a variety of payment verification methods such as password input and SMS verification to ensure the safety of online payment for customers.