Approaches To Threat Modeling
There are at least three general approaches to threat modeling:
- Attacker-centric
- Attacker-centric threat modeling starts with an attacker, and evaluates their goals, and how they might achieve them. Attacker's motivations are often considered, for example, "The NSA wants to read this email," or "Jon wants to copy this DVD and share it with his friends." This approach usually starts from either entry points or assets.
- Software-centric
- Software-centric threat modeling (also called 'system-centric,' 'design-centric,' or 'architecture-centric') starts from the design of the system, and attempts to step through a model of the system, looking for types of attacks against each element of the model. This approach is used in threat modeling in Microsoft's Security Development Lifecycle.
- Asset-centric
- Asset-centric threat modeling involves starting from assets entrusted to a system, such as a collection of sensitive personal information.
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