The reason for wifi cracking is that the encryption method of wifi is not strong enough, and the security of wifi protection can be enhanced through encryption. The security of wifi involves our information security. This includes information security, property security, and most importantly, our personal safety. If wifi is attacked, other people will most likely be able to control your phone, and your computer’s camera will be the first to commit an illegal crime. In order to protect the safety of wifi, it is necessary to use a wifi jammer.