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We propose a model to represent graphically the impact of cyber events (e.g., attacks, countermeasures) as a prismatic instance of n-sides. The approach considers information about all entities composing an information system (e.g., users, IP addresses, resources, etc.), as well as information about the attacker's knowledge, motivation and capabilities. The base of the prism is represented as an n-side...
This paper presents a model to evaluate and select security countermeasures from a pool of candidates. The model performs industrial evaluation and simulations of the financial and technical impact associated to security countermeasures. The financial impact approach uses the Return On Response Investment (RORI) index to compare the expected impact of the attack when no response is enacted against...
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