China Mobile and Cai Yun require verification codes.

Be careful when someone calls you for the verification code.

Now many businesses can be handled by mobile phone verification code, so the verification code is very important, so it must be kept secret and cannot be leaked casually. When someone calls you for a verification code, you must be careful. If it involves canceling or handling business, it is recommended to call the operator directly and consult or handle it through manual customer service. Avoid unnecessary losses.

If it involves canceling or handling business, it is recommended to call the operator directly and consult or handle it through manual customer service. Avoid unnecessary losses.