Compliance & regulations
How do we prepare for a customer security questionnaire?
Reviewed by the Privacy Horizon team · Last reviewed
Quick answer
Win security questionnaires by preparing before they arrive: adopt a recognized control framework (such as SOC 2 or ISO 27001), document your policies, keep evidence organized and current, and build a reusable library of answers to common questions. Assign a clear owner so responses are consistent and fast. A completed SOC 2 or ISO 27001 report answers most questions in one document and dramatically shortens the process.
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What these questionnaires are
During procurement, enterprise customers send security questionnaires to assess vendor risk before buying. They range from standardized formats — like the SIG (Standardized Information Gathering) questionnaire and the Cloud Security Alliance's CAIQ — to long, custom spreadsheets. They cover access control, encryption, incident response, business continuity, data handling, and more.
How to get ahead of them
- Adopt and operate a control framework (SOC 2, ISO 27001) so your answers map to recognized standards.
- Maintain current policies and procedures (access control, incident response, data retention, vendor management).
- Keep an evidence library — diagrams, logs, training records, test results — ready to share securely.
- Build a reusable answer bank so you are not rewriting responses for every deal.
- Consider a trust center or summary page that publishes your security posture and certifications.
- Designate an owner (often security, with input from legal and engineering) to keep answers accurate and consistent.
The shortcut: a recognized report
The single most effective preparation is a current SOC 2 report or ISO 27001 certification. Many buyers will accept it in place of a long questionnaire, or it will pre-answer the majority of questions — turning a multi-week back-and-forth into sharing one trusted document.
Frequently asked questions
At minimum: information security, access control, incident response, business continuity/disaster recovery, data retention, and vendor management policies — plus supporting evidence such as MFA enforcement, encryption settings, training completion, and penetration-test results. A framework like SOC 2 organizes these for you.
Yes. Privacy Horizon helps organizations build the underlying program, assemble evidence, and respond to security questionnaires efficiently — and prepare for the SOC 2 or ISO 27001 reports that pre-empt most questions.
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