Customer Assurance

Who should answer customer security questionnaires? RACI and evidence model

How should sales, security, IT, privacy, legal, and engineering own customer security questionnaires, SIG/CAIQ-style reviews, and reusable evidence?

Published2026-08-23Reading time5 min read
Personal credentials
CISSPCISMPMPChief Information Security Officer
Framework expertise areas
ISO 27001ISO 27701SOC 2 readinessDORAGDPR/KVKKAI GovernanceVendor Risk
Who should answer customer security questionnaires? RACI and evidence model — vciso.tr advisory guide cover
Who should answer customer security questionnaires? RACI and evidence model — vciso.tr advisory guide cover

Customer security questionnaires do not scale when they are left entirely to sales or a single security engineer. A good operating model separates answer ownership, evidence ownership, and commitment approval.

Practical RACI

  • Sales / Customer Success: Receives the request and manages deadline/customer context.
  • Security: Owns security-control answers and the evidence standard.
  • IT/Engineering: Validates technical reality and configuration evidence.
  • Privacy/Legal: Reviews data protection, contracts, transfers, and legal commitments.
  • Executive/Risk owner: Decides on new or exceptional security commitments.

Why are you answering the same questions repeatedly?

Because answers are not centrally maintained with review dates. Build an approved response library with question theme, approved answer, evidence link, control owner, last review, next review, and a customer-specific exception field.

The highest-risk mistake: an unsupported commitment

Statements such as “we notify within 24 hours,” “all data is encrypted,” or “we perform an annual pentest” can create contractual or operational obligations. The answer should be verified against the real control and evidence before required functions approve it.

Start with the Security Questionnaire Readiness Assessment and response-library builder. Service: Security questionnaire support.

Next step

Instead of only reading, run the related free assessment, identify missing evidence, and then scope advisory work around the decision that is actually required.

Frequently asked questions

Does this guide replace company-specific advisory?

No. It provides a general decision framework; scope, regulatory, contractual, and risk context should be evaluated for the company.

What should the first step be?

Write down the current pressure, decision owner, evidence gap, and the output that should exist in the next 30–90 days.

Sources

This content is educational. It is not legal advice, an audit opinion, or a compliance guarantee.

Next step

Need a clearer third-party risk program?

Structure vendor tiers, due diligence, contract evidence, and renewal reviews around actual business risk.