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Cybersecurity incidents are on the rise in the healthcare sector and it is becoming a growing concern for the senior executives. The attack surface is expanding due to the large number of connected medical devices and the proliferation of portable devices such as smart phones, tablets and USB devices. In this paper, we will discuss some of the security challenges facing this sector and propose a set of cybersecurity metrics that could be used to enhance the protection of the IT systems.

Nowadays, the notion of virtualization infrastructures is making significant headway in the computing landscape. The business-push to these infrastructures stemming from the Cloud computing paradigm resulted in a more sophisticated concept of rent-a-technology that enabled a series of new-networked business models. This emerging digital globalization has not only raised the legal stakes and ownership concerns; but also highlight the need of providing effective security solutions. These security solutions should be able to scale the application requirements without undue performance and quality overheads to ensure security and privacy of data in the federated Cloud deployments. This paper presents a formal way of testing the impact of scalability and heterogeneity on the federated Cloud security services. The work presented in this paper aims to develop a mean of quantifying the impact on security functions under various operating conditions and parameters of federated Cloud deployments. The results of this work will help businesses to identify the best security architecture that will fit their Cloud architectures and performance requirements.

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Abstract. The GridTrust Security Framework (GSF) offers security and trust management for the next generation Grids (NGG). It follows a vertical approach for Grid security from requirements level right down to application and middleware levels. New access control models for collaborative computing, such as the usage control model (UCON), are implemented for securing the Grid systems. The GSF is composed of security and trust services and tools provided at the middleware and Grid foundation middleware layers. GSF addresses three layers of the NGG architecture: the Grid application layer, the Grid service middleware layer, and the Grid foundation layer. The framework is composed of security and trust services and tools provided at the middleware and Grid foundation middleware layers. GSF provides policy-driven autonomic access control solutions that provide a continuous monitoring of the usage of resources by users.