This article surveys the current state of security issues and available defense mechanisms
regarding popular online social networks. It covers a wide variety of attacks and the …

Current popular and widely adopted Online Social Networks (OSNs) all follow a logically
centered architecture, by which one single entity owns unprecedented collections of …

Web applications are a frequent target of successful attacks. In most web frameworks, the
damage is amplified by the fact that application code is responsible for security enforcement …

Mobile social networks extend social networks in the cyberspace into the real world by
allowing mobile users to discover and interact with existing and potential friends who …

The increasing ubiquity of the mobile phone is creating many opportunities for personal
context sensing, and will result in massive databases of individuals' sensitive information …

Despite the popularity of adding sensors to mobile devices, the readings provided by these
sensors cannot be trusted. Users can fabricate sensor readings with relatively little effort …

Online social networks (OSNs) are immensely popular, but their centralized control of user
data raises important privacy concerns. This paper presents Vis-à-Vis, a decentralized …

This paper presents PrPl, a decentralized infrastructure that lets users participate in online
social networking without loss of data ownership. PrPl, short for private-public, has a person …

Smart phones are used to collect and share personal data with untrustworthy third-party
apps, often leading to data misuse and privacy violations. Unfortunately, state-of-the-art …

Abstract Online Social Networks (OSNs) represent today a big communication channel
where users spend a lot of time to share personal data. Unfortunately, the big popularity of …