Abstract
QQ is China's most widely used instant messaging tool, its security for user security and network security has animportant impact. Once a QQ account is hacked, the harm and the impact is terrible, the user loses a lot of friend’sinformation and contact information in a short time and is diffi cult to completely recover. This article will analyzethe security of QQ’s landing agreement, analyze its security, and point out the security vulnerabilities which exist,and explain the possible attacks that QQ may suff er, and make suggestions for improvement and ways to enhance thesecurity of QQ communication. In addition, this article also conducts a corresponding study of QQ hacking, and putsforward precautionary approaches.
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