How to turn off Apple spam?

The number of spam messages received by each mobile phone is related to the number of people who know your number, but not to your mobile phone brand. When you register software or add information through any online operation, your personal information may be leaked. Personally, we never know which bad merchant sold your personal information, or even changed hands several times, so mobile phones will continue to receive text messages, which is useless to most people, so it is called spam messages. The mobile phone will have automatic screening function, and useful short messages will have sound prompts, while spam messages without sound prompts will be automatically considered as spam messages, so they will basically not interfere with us, but we can still see that useless short messages can be deleted directly.