When can the role transfer SMS verification code exceed the limit?

The general SMS verification code can be re-sent after 24 hours.

The number of times the mobile phone obtains the verification code exceeds the limit, so it is recommended to obtain the verification code again the next day (after zero), because the number of times each account receives the system verification code every day is limited. After the number of times the system sends the verification code exceeds the limit, it will not be able to send the verification code again to prevent malicious changes to the account security information.

CAPTCHA is the abbreviation of "fully automatic public testing of computers and humans", which is a public fully automatic program used to distinguish whether users are computers or humans. It can prevent malicious password cracking, ticket brushing and forum flooding, and effectively prevent hackers from constantly trying to log in to specific registered users to use specific programs for violent cracking. In fact, using verification code is a popular way in many websites now, and we have realized this function in a relatively simple way. This question can be generated and judged by computers, but only humans can answer it. Because the computer can't answer the question of the verification code, the user who answers the question can be considered as human.