Enterprise adoption of community sharing may initially be met with hesitation because, as is the case with most community-driven projects, sharing knowledge elements may be considered insecure and potentially a bigger risk than the advantages it could provide. To overcome this, threat modeling, as well as threat forecasting, should be performed using knowledge elements available within community-driven threat intelligence feeds. However, using data generated from within the enterprise network only allows for a partial view of the threat landscape as well as the threats potentially targeting it or the security breaches that may have already occurred. Threat modeling is an effective tool used to understand the threat landscape within an enterprise network. Will Gragido, in Threat Forecasting, 2016 Synopsis Threat modeling addresses designing a secure system-not quite for the testing phase, although the list of potential vulnerabilities may still be used as test cases. Thus, in development cycles where requirements might not be fully stated initially, constant changes might leave the models redundant.
Its difficulty lies in the fact that a change made to the design requires reanalysis of the system’s security status. This process results in a threat model that describes the potential attacks on the system to be used to understand how attacks can manifest themselves, and to evaluate critical decisions that will affect the security posture of the system.
Such information might not be present during the initial design of the agile system. It requires a clear understanding of the assets to be protected, the threat’s objectives, and any factors in the environment that could influence the threat’s capability or decisions. The review process determines an adversary’s most likely courses of action in order to develop appropriate responses. Threat modeling is a methodical review of a system design or architecture to discover and correct design-level security problems.
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Rami Bahsoon, in Agile Software Architecture, 2014 10.3.3 Threat modeling
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