There was a short message today, and the mobile phone dynamic password service fee was deducted successfully, 60 cents. What is this? Can you turn it off?

This is the service fee generated by your Alipay binding mobile phone dynamic password, which can be closed at Alipay. I use this too. It's much safer. Every transaction must be sent to the mobile phone for confirmation before payment can be made. Isn't it your mobile phone number? Or Alipay is not commonly used?