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Distributed Denial of Service attacks against high-profile targets have become more frequent in recent years. In response to such massive attacks, several architectures have adopted proxies to introduce layers of indirection between end users and target services and reduce the impact of a DDoS attack by migrating users to new proxies and shuffling clients across proxies so as to isolate malicious...
Cloud computing has significantly transformed the way businesses and governments approach information technology. Although the shift to cloud computing has brought many benefits in terms of cost and efficiency, new security challenges have emerged. A recent study has identified a number of critical security issues for cloud, including advanced persistent threats, malicious insiders, and data breaches...
In recent years, botnets have gained significant attention due to their extensive use in various kinds of criminal or otherwise unauthorized activities. Botnets have become increasingly sophisticated, and studies have shown that they can significantly reduce their footprint and increase their dwell time. Therefore, modern botnets can operate in stealth mode and evade detection for extended periods...
Cyber Physical Systems typically operate unattended in hostile outdoor environments. A lot of effort has has been made to protect the communication between sensing nodes and the processing infrastructure. However, with regards to physical protection of a node, assessing the integrity of its hardware/software is a challenging issue. In this paper, we propose and evaluate a node architecture which makes...
Cyber Physical Systems are typically deployed using simple sensing nodes and communicate with a complex elaboration and management infrastructure through the internet. The new trend in the design of such systems is to implement significant part of the data elaboration within the sensing infrastructure. Due to the scarce computing capabilities of the nodes and tight performance constrains, it is necessary...
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