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The increasing popularity of wireless networks makes the protection of online privacy be a common concern of users and internet service providers.Because of the difference of wireless networks and wired networks,it is proved to be easier for hackers to steal information related to users" privacy in wireless networks than that of wired networks.The issue that whether online privacy protection is necessary or reasonable has given rise to much controversy.In this paper,the discussion of this issue includes what online protection of privacy is,current problems of online privacy protection in wireless networks,exploration of solutions and problems that may caused by the protection.No matter what extent the protection will be,it is proved to be essential for experts,users and IT staff to enhance the protection in wireless networks via new technologies,policy and law.It is also a way for improving the security of information management and business communication in wireless networks.