Is there any way to prevent threatening phone fraud?

This situation can only be intercepted by the safe capacity of the mobile phone. For example, Tencent mobile phone housekeeper.

Methods: Mobile phone housekeeper-harassment interception-black and white list function, just follow the prompts.

Put this person's phone number in the SMS blacklist, and select "Delete Blacklist SMS" so that you won't receive SMS again.

If you can set a harassment reply tone, put this number on the phone blacklist and set it to "refuse to answer the permanently blacklisted phone". Choose one of five ways to refuse the call: On the phone:-No number:-Phone turned off:-Incorrect connection:-Out of service.