Abstract: Recently computer systems have become a critical part of network-connected system, possessing essential economic and human values to individuals and organizations. This key role of the systems has increased the requirements for their protection. They have to be more resistant against malicious activities .Web mining refers to the whole of data mining and related techniques that are used to automatically discover and extract information from web documents and services. Web mining does, however, pose a threat to some important ethical values like privacy and individuality. Web mining makes it difficult for an individual to autonomously control the unveiling and dissemination of data about his/her private life. To study these threats, we distinguish between `content and structure mining`` and `usage mining.`` Web content and structure mining is a cause for concern when data published on the web in a certain context is mined and combined with other data for use in a totally different context. Web usage mining raises privacy concerns when web users are traced, and their actions are analyzed without their knowledge. Sophisticated analytic and data mining software tools enable firms to use the data contained in these logs to develop and implement a complex relationship management strategy Although there are a variety of solutions to privacy-problems, none of these solutions offers sufficient protection. The values of privacy and individuality should be respected and protected to make sure that people are judged and treated fairly. People should be aware of the seriousness of the dangers and continuously discuss these ethical issues. This should be a joint responsibility shared by web miners (both adopters and developers), web users, and governments. This study gives a detailed study report on privacy issues on the streamlined navigation of users, which helps them in privacy and individuality.