How to choose a secure SMS channel?

Harassment interception setting method:

1. Go to Settings-(Application and Permission)-(System Application Settings)-Phone/Information-Harassing Phone/Information Interception-Open the corresponding interception option;

2. Enter I Housekeeper-Utility-Harassment Interception-Telephone Interception/Information Interception-Open the corresponding interception options;

3. Some models have no harassment interception, so you can enter Settings-Set Blacklist in your mobile phone.