How do you know that the online banking in your postal savings card is authenticated by SMS?

Hello, there are three security authentication methods for personal online banking of China Postal Savings Bank: SMS, SMS+electronic token and SMS +ukey, in which each electronic token or ukey charges customers a 20 yuan fee, and SMS authentication is free; If you don't spend 20 yuan money to buy electronic tokens or ukey, you should apply for SMS authentication; Or bring your ID card and bank card to the counter of the Postal Savings Bank to check the online banking authentication method; I hope it helps you.