Documenting and Tracking Identified Threats
Recording and following up on every threat found
A threat modeling exercise that produces an excellent diagram and a detailed list of threats but never translates into an actionable, tracked record ends up being an academic exercise with no real impact on the product's security. Each identified threat must be documented with enough information to act on it later: the concrete description of the attack scenario, the affected component, the estimated severity, the control proposed to mitigate it and, crucially, an owner and a target resolution date, in the same way any other critical product defect would be managed. A frequent mistake is treating the threat modeling document as a static artifact generated once and filed away, when in reality it should live integrated into the same work tracking system the development team uses, so threats compete for priority alongside the rest of the backlog instead of being isolated in a document nobody opens again. Continuous tracking also makes it possible to detect threats left accepted as risk without a formal decision, simply for lack of time, which in itself represents a governance risk worth making visible.