My iphone has been harassed by hundreds of text messages since last night. The content of the short message is roughly what the registration verification code is.

Specific analysis of the specific situation. Iphone poisoning will definitely not. One possibility is that you installed a strange game after you escaped from prison. This is easy to solve. Uninstall all games. Another situation is that your mobile phone number is used to register some websites, and it will automatically send verification information. You need to find an operator to solve it.