Why a “Cookbook”?The Interplay of Requirements, Threats, and MitigationsBusiness RequirementsPrevent/Detect/Respond as a Frame for RequirementsPeople/Process/Technology as a Frame for RequirementsDevelopment Requirements vs. Acquisition RequirementsCompliance-Driven RequirementsPrivacy RequirementsThe STRIDE RequirementsNon-RequirementsSummary