How does Apple's mobile phone prompt bank SMS as spam?

Apple phones can't be marked directly, but can be intercepted and deleted.

Method 1: Open the settings, select SMS, select imessage, and close imessage. Method 2: Close the unknown user information. Method 3: Direct blackening treatment.

Spam messages refer to messages that users don't want to receive without their consent, or messages that users can't refuse to receive according to their own wishes, mainly including the following attributes: (1) commercial and advertising messages sent to users without their consent. (two) other short messages that violate the self-discipline norms of the industry.