Automatically Generate Threat Models from Your Code with SecureFlag

Are your development teams struggling to keep threat models up to date? Considering how quickly applications change, manually updating them can feel like a never-ending task. However, if threat models are outdated, serious risks could be overlooked. 

SecureFlag makes threat modeling for development teams much easier with its new “Code Repository to Threat Model” feature. It automatically turns your codebase into a living threat model in ThreatCanvas, directly from your CI/CD pipeline. 

Feature image of ThreatCanvas logo on SecureFlag background

Why Automate Threat Modeling from Code?

Repositories get updated every day, sometimes even hourly, so you can see how damaging it could be if threat models are created only once at the beginning of a project. They would miss new features, dependencies, and threats.

Generating threat models from your code repository structure helps you:

  • Understand application architecture as it exists today.

  • Identify security boundaries, components, and integration points automatically.

  • Find potential attack surfaces earlier in development.

  • Keep threat models aligned with code changes.

How the Code Repository to Threat Model Works

The process is straightforward, automated, and secure. Here’s an overview of the steps it takes:

  1. Code extraction: The SecureFlag runner (a CI/CD job that runs in your repository) scans your code and extracts information about the application’s architecture.

  2. AI analysis: AI analyzes the structure and generates a summary that identifies components, boundaries, and integration points.

  3. Send to ThreatCanvas: ThreatCanvas then uses the summary to automatically create a structured threat model, giving your team an up-to-date visual map they can review, refine, and act on immediately.

For more detailed information, check out our guide

Built with Data Protection and Privacy in Mind

Automatically analyzing code raises valid security concerns, which is understandable. However, Code Repository to Threat Model is designed so your source code stays under your control.

  • Code never leaves your infrastructure: Repository scanning happens entirely inside your CI environment.

  • You use your own LLM account:  AI analysis runs using your organization’s LLM credentials. Anthropic is currently supported, and you control the API key and data handling.

  • No source code is sent to SecureFlag: We only receive an AI-generated architectural description of your repository, such as component and function names, boundaries, and integration points. No code logic or implementation details are shared.

Teams can benefit from AI-driven threat modeling without exposing sensitive source code.

Integrates into Any CI/CD Pipeline

The SecureFlag CI runner is platform-agnostic and Docker-based. It works with virtually any CI/CD system, including:

  • GitHub Actions

  • GitLab CI

  • Jenkins

  • Azure DevOps

  • CircleCI

  • Bitbucket Pipelines

Fine-Tune the Threat Model to Match Your Needs

In ThreatCanvas, you can refine the model, adjust assumptions, and select the risk frameworks most important to your organization, such as secure coding–focused frameworks.

You can also influence the generated output directly from your pipeline, for example:

  • Limit diagram complexity by guiding how many components appear.

  • Focus analysis on specific directories instead of the entire repository.

Screenshot of a ThreatCanvas threat model

Making Threat Modeling Part of Everyday Development

Threat modeling is most effective when it’s continuous. Connecting your code repository to ThreatCanvas provides benefits that will keep your organization more secure, such as:

  • Earlier risk detection: Find issues early, not months later during a security review.

  • Faster remediation: Fix risks while the code is recent and the context is clear.

  • Less context switching: Review security insights alongside feature work rather than in separate audit findings.

  • Accurate coverage: Keep your threat model automatically aligned with changes in the application.

Automated threat modeling keeps security in sync with development, so teams can make informed decisions without slowing them down. 

Book a demo to turn your code into a living threat model.

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