الفهرس 
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Abstract
The increased deployment of public wireless access points (hotspots), as well as the growth of wireless smart devices such as tablets and mobile phones, have made it simpler for individuals to access information on the Web. While handy, such networks pose security and privacy issues. However, most users are oblivious to the privacy risks since there is no way for them to determine to what extent their privacy is compromised.
Privacy can be defined as a basic right that is necessary for autonomy and the protection of human dignity, and it serves as the foundation for many other human rights.
Privacy helps us to build walls and maintain boundaries to protect ourselves from unwelcome intrusion into our lives, allowing us to decide who we are and how we wish to interact with the world around us. Privacy allows us to set limits on who has access to our bodies, locations, and objects, as well as our conversations and information.
The main goal of this thesis is examining privacy leakage in public Wi-Fi, from users’ activities such as web browsing, search engine querying, and use Social Networking, and the users’ awareness of this privacy leakage.
To achieve this goal, we have collected real data for 7295 users from three public Wi-Fi points distributed in the range of Minia University, as it covers the large range of the university. After analyzing the collected data and classify all visited website using machine learning model, We discovered that 85% of users are using the category of spammy links, which can contain annoying websites and some intrusive, annoying ads while browsing websites, which may cause leakage of device information and user privacy, and 90% of the users use Social Network category, and 60% from the users use search engine category.
After conducting our experiment, a survey was also conducted to find out the users awareness of public Wi-Fi networks about privacy leaks and 514 people participated in it. After analyzing the survey, some important results were found, including that 97.5% of people are interested in using the Internet in most daily life to follow the news, communicate with relatives and friends, e-learning, shopping, social networking sites, etc. Also 84.8% of people prefer to connect to public Wi-Fi instead of the mobile data network because it is free cost if those two networks are available together. Moreover, 64.4% of users of public Wi-Fi networks do not disable photo and file sharing while connected to that network. 45.5% of people don’t have enough awareness of privacy leaks while connected to public Wi-Fi. 63.6% of people do not use security software while connected to public Wi-Fi, and 11.9% of people do not care about that. In addition, 43.4% of people after browsing sites that require a login before browsing them do not log out after browsing, and 12.6% of people do not care about that. All these numbers and percentages are very dangerous and may lead to a violation of users’ privacy when they connect to public Wi-Fi networks. Finally, some recommendations have been given that can help protect users’ privacy when using public Wi-Fi networks.