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WiFi Access Points (APs) are ideal targets of attack. They have access to home internal networks which allows an adversary to easily carry out man-in-the-middle attacks and spread infections wirelessly. They can also be used to launch massive denial of service attacks that target the physical infrastructure as well as the RF spectrum (both WiFi and(More)
Mobile phones are equipped with an increasingly large number of precise and sophisticated sensors. This raises the risk of direct and indirect privacy breaches. In this paper, we investigate the feasibility of keystroke inference when user taps on a soft keyboard are captured by the stereoscopic microphones on an Android smartphone. We developed algorithms(More)
Over the last decade botnets survived by adopting a sequence of increasingly sophisticated strategies to evade detection and take overs, and to monetize their infrastructure. At the same time, the success of privacy infrastructures such as Tor opened the door to illegal activities, including botnets, ransomware, and a marketplace for drugs and contraband.(More)
In the last decade, Tor proved to be a very successful and widely popular system to protect users' anonymity. However, Tor remains a practical system with a variety of limitations, some of which were indeed exploited in the recent past. In particular, Tor's security relies on the fact that a substantial number of its nodes do not misbehave. In this work we(More)
Today, cloud computing is of paramount importance and is widely used. There have been many works illustrating the potential of narrowly focused security attacks against cloud systems, as well as elaborate mitigation techniques. However, the understanding of the implications of these attacks and mitigations on practical cloud systems as a whole, remains(More)
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