How can you not see the intercepted SMS at all?

By blocking the software, turning off the notification and changing the SMS settings, such messages can be completely invisible.

1. Interception software: Interception software can be installed on mobile phones or computers to intercept specific numbers or types of short messages.

2. Turn off notification: Some mobile phone settings allow notification to be turned off to prevent SMS from disturbing, but you can still check the mobile phone manually if necessary.

3. Change SMS settings: Some mobile phones are allowed to change SMS settings, thus customizing the types and settings of received SMS. You can change the settings to display all text messages or only text messages from contacts.