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Process Flow Diagrams (PFDs) vs. Data Flow Diagrams (DFDs) in the Modern ThreatModeling Arena
Originally popularized by Microsoft in their Open Source Threat Modeling Tool (TMT), data flow diagrams (DFDs) have been the de facto approach to threat modeling in the Information Security profession. As the technology industry has moved towards rapid iterative modular development and deployment, the flaws in continuing to use DFDs have become painfully obvious.
This short paper puts forward some of those flaws and the advantages of moving to a more mature Process Flow Diagram (PFD) approach to threat modeling as a solution.
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