"Anyone will install antivirus software on their own computer, but how many people would install antivirus software on their own mobile phone?" After the爆发 of the "sex photo" scandal, people's attention to computer information security has been aroused again. However, most people don't pay enough attention to the information security of mobile phones. Taking photos, shooting videos, recording, receiving and sending emails... As the functions of mobile phones become more and more powerful, more and more personal important information is stored. The intrusion of mobile phone viruses and malicious software, repair, scrapping or loss of mobile phones may lead to the leakage of important personal information in mobile phones.