23,447 research outputs found
Rethinking De-Perimeterisation: Problem Analysis And Solutions
For businesses, the traditional security approach is the hard-shell model: an organisation secures all its assets using a fixed security border, trusting the inside, and distrusting the outside. However, as technologies and business processes change, this model looses its attractiveness. In a networked world, âinsideâ and âoutsideâ can no longer be clearly distinguished. The Jericho Forum - an industry consortium part of the Open Group â coined this process deperimeterisation and suggested an approach aimed at securing data rather than complete systems and infrastructures. We do not question the reality of de-perimeterisation; however, we believe that the existing analysis of the exact problem, as well as the usefulness of the proposed solutions have fallen short: first, there is no linear process of blurring boundaries, in which security mechanisms are placed at lower and lower levels, until they only surround data. To the contrary, we experience a cyclic process of connecting and disconnecting of systems. As conditions change, the basic trade-off between accountability and business opportunities is made (and should be made) every time again. Apart from that, data level security has several limitations to start with, and there is a big potential for solving security problems differently: by rearranging the responsibilities between businesses and individuals. The results of this analysis can be useful for security professionals who need to trade off different security mechanisms for their organisations and their information systems
Security and Privacy Issues of Big Data
This chapter revises the most important aspects in how computing
infrastructures should be configured and intelligently managed to fulfill the
most notably security aspects required by Big Data applications. One of them is
privacy. It is a pertinent aspect to be addressed because users share more and
more personal data and content through their devices and computers to social
networks and public clouds. So, a secure framework to social networks is a very
hot topic research. This last topic is addressed in one of the two sections of
the current chapter with case studies. In addition, the traditional mechanisms
to support security such as firewalls and demilitarized zones are not suitable
to be applied in computing systems to support Big Data. SDN is an emergent
management solution that could become a convenient mechanism to implement
security in Big Data systems, as we show through a second case study at the end
of the chapter. This also discusses current relevant work and identifies open
issues.Comment: In book Handbook of Research on Trends and Future Directions in Big
Data and Web Intelligence, IGI Global, 201
Survey on security issues in file management in cloud computing environment
Cloud computing has pervaded through every aspect of Information technology
in past decade. It has become easier to process plethora of data, generated by
various devices in real time, with the advent of cloud networks. The privacy of
users data is maintained by data centers around the world and hence it has
become feasible to operate on that data from lightweight portable devices. But
with ease of processing comes the security aspect of the data. One such
security aspect is secure file transfer either internally within cloud or
externally from one cloud network to another. File management is central to
cloud computing and it is paramount to address the security concerns which
arise out of it. This survey paper aims to elucidate the various protocols
which can be used for secure file transfer and analyze the ramifications of
using each protocol.Comment: 5 pages, 1 tabl
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