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This talk by Alyssa Miller is fascinating and thought provoking. She frames a focus on integrating threat modeling into devops. The question of ‘what are we working on’ is answered with use cases, and threat modeling for that sprint is scoped to the use cases. ‘What can go wrong’ is focused on a business analysis…
Read More Threat Model In My DevopsThere’s an interesting and detailed blog post from Antti Vähä-Sipilä and Heli Syväoja at the F-Secure blog, Using SAFe® to align cyber security and executive goals in an agile setting. What I find most useful is the detailed and specific elements of how to bring threat modeling into the Scaled Agile Framework, in particular: Security…
Read More Threat Modeling & the SAFE Framework
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I’m happy to announce Shostack & Associate’s new, first, corporate white paper!It uses Jenga to explain why threat modeling efforts fail so often. I’m excited for a lot of reasons. I care about learning from failure. I love games as teaching tools. But really, I’m excited because the paper has helped the people who read…
Read More The Jenga View of Threat Modeling
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Contextualisation of Data Flow Diagrams for security analysis is a new paper to which I contributed: “Abstract: Data flow diagrams (DFDs) are popular for sketching systems for subsequent threat modelling. Their limited semantics make reasoning about them difficult, but enriching them endangers their simplicity and subsequent ease of take up. We present an approach for…
Read More Contextualisation of Data Flow Diagrams…
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For Threat Model Thursday, I want to look at models and modeling in a tremendously high-stakes space: COVID models. There are a lot of them. They disagree. Their accuracy is subject to a wide variety of interventions. (For example, few disease models forecast a politicized response to the disease, or a massively inconsistent response within…
Read More Models and Accuracy (Threat Modeling Thursday)
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The UK’s National Computer Security Center has a blog post on Drawing good architecture diagrams.
Read More NCSC on Good Architecture DiagramsMost of my time, I’m helping organizations develop the skills and discipline to build security in. We give the best advice available, and I recognize that we’re early in developing the science around how to build an SDL that works. That’s why I spend time working with academics who can objectively study what we’re working…
Read More SDL Article in CACM
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This week’s threat model Thursday looks at an academic paper, Security Threat Modeling: Are Data Flow Diagrams Enough? by Laurens Sion and colleagues. The short (4 page), readable paper looks at the strengths and weaknesses of forms of DFDs, and what we might achieve with variations on the form and different investments of effort. I…
Read More Threat Model Thursday: Data Flow Diagrams
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On Linkedin, Peter Dowdall had a very important response to my post on remote threat modeling. Because comments on Linkedin are a transient resource, I’m going to quote heavily: The team here ran a session with people in the same room using Miro (maybe 1 remote) and we found it stripped the barriers of either…
Read More Power Dynamics in Threat Modeling
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Practicing physical distancing has already dramatically changed how we work, and will continue to do so. Being physically distant means we can’t use a whiteboard to help us talk through “what are we working on?” There are technical facets of threat modeling, like using visual models to show and scope “what are we working on?”…
Read More Answering “What Are We Working On” When Remote