Will this completely replace security questionnaires?
For most small and mid-market deals, yes. A published trust portal answers the questions that 80% of questionnaires actually care about — encryption at rest and in transit, access controls, incident response, subprocessor disclosure, certifications — and once a buyer has the underlying documents in hand, the questionnaire often becomes a formality or gets skipped entirely. For regulated industries (financial services, healthcare, government) you will still occasionally see formal SIG, CAIQ or VSAQ questionnaires that have to be returned in their exact format. Treat the portal as the source of truth: answer the questionnaire by copying from the canonical answers on your trust page rather than rewriting from scratch each time.
