Guides
Concrete answers, question by question.
Standard questionnaires, GDPR, security, method: practical guides written by the Prova team to prepare your vendor dossiers without starting from scratch.
Security
Do you need ISO 27001 certification to answer a security questionnaire?
No, ISO 27001 certification is almost never required to answer an enterprise security questionnaire. What it actually changes, what it does not exempt you from proving, and how to answer solidly without it, one piece of evidence at a time.
July 12, 2026 · 7 min read
Security
Vendor security questionnaire: how to prepare a dossier that passes
Preparing an enterprise vendor security questionnaire: what the customer checks, the supporting evidence expected, the common mistakes, and the Prova method for structuring every answer.
May 12, 2026 · 6 min read