Is it credible to buy a high-speed rail ticket and receive a text message from Tongcheng to change laundry detergent?

It is not credible to buy a high-speed rail ticket and receive a text message from Tongcheng to change the laundry detergent. As long as you don't operate it yourself, the text messages are fake. When you receive the SMS verification code of unknown origin, you should generally consider the disclosure of personal information to prevent it from being stolen or used to register things at will. In most cases, receiving the verification code without my own operation means that personal information is leaked. It is only because of the "verification code" that non-native operations are forced to get stuck here. These verification codes are evidence that others are trying to operate. In this case, we still have to ask ourselves what risky things we have done before. For example, downloading the APP in disorder, scanning the code may lead to the disclosure of personal information. Therefore, it is not credible to buy a high-speed rail ticket and receive a text message from the same journey to change the laundry detergent.