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OWASP Threat Model Cookbook Project

This project is about creating and publishing threat model examples. They can be in the form of code, graphical or textual representations. The models will use diverse technologies, methodologies and techniques.

You can learn from those models, use them a base to start your own, or contribute to and expand some of the models. Thus making this a collaborative cookbook of threat models.

https://owasp.org/www-project-threat-model-cookbook/

https://twitter.com/OWASP_tmcb

Disclaimer

Examples provided in this repository are not representations of secure systems, but rather insecure systems that are easy to model. Most of them are made up systems that don't exist in reality. Any resemblance to real life systems is purely coincidental.

Contributing

We are welcoming PRs containing examples to add to the cookbook. If you want to add new threat models, create more versions based of existing drafts, feel free to directly submit a PR.

Here's some guidelines on how our file structure works:

  • INDEX.md contains all systems that are modeled with embeded pictures and short descriptions.
  • Top-level directories are the type of threat models. Example: Flow Diagram.
  • If your threat model has 1 or 2 files, you can put the files directly in that directory. If they have more, please create a folder with the name of your system to be modeled.
  • The name of the system needs to be using dashes and alphanumeric characters only. No spaces.
  • A file needs to have a specific extension depending on the format: system-name.tool and system-name.tool.exportfiletype. As examples, we have the code file cryptowallet.plantuml and the output to an image file generated from that code as cryptowallet.plantuml.svg. Refer to the README.md in each top-level folder for a list of tools and their file extension matches.
  • If you have multiple representation of the same system using the same tool, we suggest you add altN- at the start of the file where N is a number.

If this sounds complicated and you just want to contribute, you can still submit a PR and we'll refactor it for you. We might have more automation and outside references in the future so we want to keep a strict file structure.

If you'd like to discuss about the structure of the project, feel free to join the discussion on OWASP Slack.

Licenses

All models in form of textual or graphical representations are under CC-BY 4.0

All models as code are under Apache License 2.0

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