How to deal with the information that the mobile phone number is fraudulently used to send harassing calls to the address book?

If your mobile phone number is fraudulently used to send harassing phone messages to the address book, you can consider taking the following measures:

Stay calm: Try not to reply to these messages, and don't make random phone calls to avoid aggravating harassment.

Call customer service: You can call the customer service phone of your mobile phone operator, explain the situation to them and ask for help. Operators can help you track and find people who use your number fraudulently, and help you modify account information such as passwords to prevent theft.

Seek police help: If the situation is serious, you can report the case to the local police, provide relevant evidence, and let the police intervene in the investigation and take necessary actions.

Install anti-harassment software: you can install some anti-harassment software on your mobile phone, such as 360 security guards, which can help you block harassing calls and text messages and protect your personal information from being leaked.

In short, if your mobile phone number is fraudulently used to send harassing phone messages to the address book, you should take action as soon as possible to protect the safety of personal information.