Preservation of data privacy and protection of sensitive information from potential
adversaries constitute a key socio‐technical challenge in the modern era of ubiquitous …

Recent years have seen unprecedented growth in the popularity of social network systems,
with Facebook being an archetypical example. The access control paradigm behind the …

The popularity of online social networks (OSNs) makes the protection of users' private
information an important but scientifically challenging problem. In the literature, relationship …

Privacy policies are often defined in terms of purposes for which the information may be
used. Recent work on specification and enforcement of purpose-based privacy policies …

Understanding the privacy implication of adopting a certain privacy setting is a complex task
for the users of social network systems. Users need tool support to articulate potential …

Currently, many users of Social Network Sites are insufficiently aware of who can see their
shared personal items. Nonetheless, most approaches focus on enhancing privacy in Social …

The dominant role of social networking in the web is turning human relations into conduits of
information flow. This means that the way information spreads on the web is determined to a …

Purpose Privacy policies emerge as the main mechanism to inform users on the way their
information is managed by online service providers, and still remain the dominant approach …

Transparency and immutability properties of blockchains enhance traceability and trust in
supply chains. However, supply chain participants resist storing most data on blockchains …

Visualization is the essential part of Security Information and Event Management (SIEM)
systems. The paper suggests a common framework for SIEM visualization which allows …