Why did you get a bad call?

Answer: Because the information was leaked.

Man-made reselling of information, mobile phone leakage, PC infection and website loopholes are the four major ways to disclose personal information at present.

To avoid personal information being leaked, you can prevent it by the following points.

Don't go to illegal websites, because many of these websites have phishing programs, which will record all your actions, and some will even steal the account password filled in your computer;

Don't easily install some unwitting software on computers and mobile phones, which may steal your private information. Many newly downloaded apps will ask you for authorization, so you should be careful, especially the geographical location permission and address book permission. Don't authorize easily, otherwise your location information and mobile phone address book will be obtained by software!