What are vendor security questionnaires?

Vendor security questionnaires are structured sets of questions used to assess a supplier’s controls, policies, certifications and security practices. They are useful for collecting information that cannot be observed externally, but they are point-in-time and largely self-reported. Answers may become outdated or fail to show the customer-specific relationship. Organisations should combine questionnaires with contractual evidence, external monitoring and business context. ThingsRecon contributes continuously observed evidence and Digital Proximity, complementing rather than replacing due diligence. In practice, teams should record the supporting evidence, confirm ownership and business criticality, and connect the finding to an accountable workflow. This prevents a useful observation from becoming another isolated score or dashboard alert. The strongest implementation combines external intelligence with internal knowledge, supplier engagement and documented risk decisions, creating a view that remains useful as the digital ecosystem changes.