What is the SMS password?

Short message password, also known as short message dynamic password or short message password, is a 6-digit random number dynamic password sent in the form of short message, and also a mobile phone dynamic password form. The identity authentication system sends a random 6-8-digit password to the customer's mobile phone in the form of short message, and the customer enters this dynamic password when logging in or authenticating the transaction, thus ensuring the security of the system identity authentication.