Why does Tik Tok Extreme Edition registration make people send text messages?

This situation should be that your account is not logged in on this device, and you can log in normally after verifying your identity. This is normal, just like after changing your mobile phone, you can log in normally after verifying your identity.

Many softwares have such a risk control system. Let me give you a comparison. For example, if you often log in to an account in a region and suddenly lend your account to a friend, the risk control system will detect the risk of this login. In order to reduce the risk, he will do a verification to reduce the probability of account theft.

In fact, the current software risk control is very comprehensive, which can protect the user's account from (location, login habits, ip, hardware address) and reduce the risk of account theft. So you don't have to worry. It is normal.