Walk the Webhook Threat Model

Public endpoint Sam is adding a vendor webhook that updates subscription state. The vendor retries failed events, the endpoint is public, and billing changes must be correct. The risk is not line count. The risk is a new trust boundary that can change money-related state. Threat model loop Scope -> Failure -> Evidence Use the four-question threat-modeling loop as a set of release decisions: what changed, what can go wrong, what will we do, and how will we know it is enough? Skip Ask "any concerns?" and get silence. The review produces controls that engineering can implement in the same…

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