Does Amazon need SMS verification to bind bank cards?

Need. Amazon needs SMS authentication to bind bank cards. If not, the security will be low, so formally speaking, mobile phone authentication is necessary, and now mobile banking needs mobile phones more. So in general, mobile phone authentication is very necessary. Bank card refers to a credit payment tool issued by commercial banks (including postal financial institutions) with all or part of the functions of consumer credit, transfer settlement, cash deposit and withdrawal, etc.