Commit a Twenty-Minute Threat Model
Commit to a specific threat-modeling action on an upcoming application change.
Run a focused threat model on a real application change before implementation or review. Choose a feature with an application-security boundary: a new API endpoint, webhook, file upload, admin action, background job, sensitive export, tenant-scoped data path, invite token, payment callback, or dependency update. Before this app change moves forward, I will run a 20-minute threat model: draw the trust boundary, answer what can go wrong, choose one mitigation, and add one evidence item such as a denial test, audit event, validation gate, or release criterion. I will record the result in the ticket or PR so the team can…
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