What's the difference between voice verification code and SMS verification code?

There are two main reasons for the difference between the two.

On the one hand, it is the factor of experience. There is a problem with the arrival rate of short messages, and many short messages will be lost, especially such verification notification short messages. No SMS service provider can achieve the arrival rate of 100%, and there are other factors such as SMS control in Tibet, so SMS verification usually makes 5% to 10% users fail to pass the verification. In contrast, the experience and convenience of telephone verification can't be compared with SMS, but in the case of unacceptable reception, telephone verification can ensure the whole process to go smoothly.

On the other hand, it is the factor of risk control safety. At present, SMS authentication mainly has the following risks:

1, mobile phone Trojan: The popularity of smart phones makes SMS authentication, which was relatively safe, as fragile as paper. After winning the Trojan horse, the short message will be forwarded unwittingly, which will lead to invalid verification and property damage.

2. SMS warehouse/SMS transfer/information disclosure: The first two items are the business of operators, and you can see the content of SMS on the website or forward it to the designated mobile phone.

3. Cheating risk: Now many companies will have many business activities to support their business, such as full reduction promotion, new customers 1 yuan, free experience, spike, purchase restriction and so on. , which means you need a lot of accounts. However, accounts are generally required to do SMS verification to verify that they are real users, so there are card merchants who specialize in mobile phone verification code services to earn customers, which harms the normal business development of the company.