Why does SMS verification code have four digits and six digits?

In terms of security, six bits are more secure than four bits and the probability of being cracked is lower.

But it also caused the cost of users' memory and investment to some extent. Four digits is more convenient than six digits.

For the convenience of users, it is set to four digits. Pay more attention to safety, just set it to six digits.

For more important content, it can also be set to six digits, and for general content, it can be set to four digits.

In the SMS verification code platform of Saiyou, you can set four or six digits according to your own needs.

There is more safe and convenient work to improve a fast, stable and convenient SMS verification code platform for enterprises and developers.