Firstly you should know that OTP  Message is a one-time password. It is used for more security for users, it helps to identify that the person trying to sign up is not fake, so when you sign up for any platform you receive an OTP in text and it becomes more beneficial for banking. and that platform where we shared our information such as numbers or addresses.

More information: https://techyvibe.net/what-are-otp-messages/