Articles
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Vulnerability assessment is a crucial aspect for the development of methodologies to define the levels of protection in critical infrastructures. Throughout the investigation, the concept of vulnerability and methodologies and processes for its assessment in critical infrastructures due to the terrorist threat were discussed. The investigation was focused on developing an analysis model, exploring a multi-criteria decision model, in order to limit the risks as much is possible. Through a qualitative research methodology, in which was applied an analysis model based on the dimensions Threat and Infrastructure and their respective factors, it was verified that the vulnerability of a critical infrastructure consists in the probability of success of an attack, conducted by a threat - properly identified, characterized, analysed and categorized - against an infrastructure with certain characteristics, which its value is defined by the user and aggressor point of view. The construction of an algorithmic model for vulnerability assessment, complemented by tools to support the calculations and records, allows, through a rational, scientific and algebraic process, to transform a qualitative analysis of factors into measurable and quantifiable values, whose algebraic operation integrates them into a final result that expresses, in percentage, the degree of vulnerability of a critical infrastructure to a terrorist threat.
