EAN: 9783031012112

SYNTHESIS LECTURES ON INFORMATION SECURITY PRIV...

The enormous success and diffusion that online social networks (OSNs) are encountering nowadays
is vastly apparent. Users' social interactions now occur using online social media as
communication channels  personal information and activities are easily exchanged both for
recreational and business purposes in order to obtain social or economic advantages. In this
scenario  OSNs are considered critical applications with respect to the security of users and
their resources  for their characteristics alone: the large amount of personal information they
manage  big economic upturn connected to their commercial use  strict interconnection among
users and resources characterizing them  as well as user attitude to easily share private data
and activities with strangers. In this book  we discuss three main research topics connected to
security in online social networks: (i) trust management  because trust can be intended as a
measure of the perception of security (in terms of risks benefits) that users in an OSN have
with respect to other (unknown little-known) parties  (ii) controlled information sharing 
because in OSNs  where personal information is not only connected to user profiles  but spans
across users' social activities and interactions  users must be provided with the possibility
to directly control information flows  and (iii) identity management  because OSNs are
subjected more and more to malicious attacks that  with respect to traditional ones  have the
advantage of being more effective by leveraging the social network as a new medium for reaching
victims. For each of these research topics  in this book we provide both theoretical concepts
as well as an overview of the main solutions that commercial non-commercial actors have
proposed over the years. We also discuss some of the most promising research directions in
these fields.

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