Security Questionnaire · Support

Stop losing weeks to
security questionnaires.

Enterprise buyers send SIG, CAIQ, and custom vendor questionnaires before they'll sign a contract. We draft accurate, audit-consistent answers — fast — so your deal doesn't stall.

Book a working session →
Last updated: 16 June 2026

What is a security questionnaire?

A security questionnaire is a structured set of questions that enterprise buyers send to vendors to assess their information security posture before approving a procurement. Common formats include the SIG (Standardised Information Gathering) questionnaire, the CAIQ (Consensus Assessments Initiative Questionnaire) for cloud providers, and bespoke questionnaires created by the buyer's security or legal team. A full SIG has over 1,000 questions across 19 risk domains.

The problem: questionnaires kill deals

A £300,000 enterprise deal arrives. The buyer's security team sends you a 900-question SIG questionnaire. You need to respond within 10 business days or the deal goes on hold. Your CTO estimates it will take three weeks of engineer time to complete it accurately. Your sales team is panicking. Your engineers don't want to touch it.

This is one of the most common deal-blockers for AI startups in enterprise sales. And the damage compounds: every questionnaire you answer ad hoc becomes a liability — inconsistent answers across questionnaires create contradictions that diligent buyers will find.

ProtectifyAI drafts your questionnaire responses accurately, consistently, and fast. We build an answer bank mapped to your actual security posture — so every future questionnaire takes days, not weeks.

Questionnaire types we handle

Shared Assessments

SIG / SIG Lite

The most common enterprise vendor risk assessment. Full SIG: 1,000+ questions across 19 domains. SIG Lite: shorter version for lower-risk vendors.

CSA

CAIQ

Consensus Assessments Initiative Questionnaire — the standard for cloud provider security assessments. Aligned to the CSA Cloud Controls Matrix.

Bespoke

Custom questionnaires

Many enterprise buyers (banks, insurance companies, US government contractors) send their own security questionnaires. We handle these too.

AI-specific

AI due diligence

Enterprise buyers increasingly include AI governance sections in their questionnaires — covering model transparency, bias assessment, training data, and EU AI Act compliance.

What we do

How quickly can you respond to a questionnaire?

For organisations with an existing answer bank and documented security posture: 3–5 business days for a full SIG questionnaire.

For first-time questionnaire responses requiring answer bank creation: 5–10 business days, depending on questionnaire complexity and the availability of your engineering team for factual queries.

Rush responses (24–48 hours) are possible for urgent deals — speak to us in your working session.

Security Questionnaire Response Checklist

The 36-point checklist we use before responding to any enterprise security questionnaire — covering pre-response review, answer consistency, sensitive question flags, certification evidence, and submission format. Enter your email to receive it.

You pay for the deal moving forward.

Outcome-based pricing. Fixed fee per questionnaire engagement or monthly retainer for ongoing support.

01 · Single questionnaire

One-off response

Fixed fee
· per questionnaire
  • Full drafting and review
  • Answer bank creation
  • Submission support
Start now →
03 · Implementation

Security posture build

Outcome fee
· payable on certificate
  • SOC 2 or ISO 27001 implementation
  • Builds the security posture that makes questionnaires easy
  • Includes 12 months questionnaire support
Scope an engagement →

The best way to make questionnaires fast and easy is to have a SOC 2 or ISO 27001 certification. Most questions answer themselves. Ask us about bundling questionnaire support with implementation.

Frequently asked questions

What is a security questionnaire?

A security questionnaire is a structured set of questions that enterprise buyers send to vendors before approving a procurement. The most common formats are the SIG (Standardised Information Gathering), CAIQ (for cloud providers), and custom questionnaires from large enterprise and regulated-sector buyers. A full SIG questionnaire has over 1,000 questions across 19 risk domains.

How long does it take to complete a security questionnaire?

Without a prepared answer bank, a full SIG questionnaire typically takes 2–6 weeks of engineering and management time. With ProtectifyAI managing the response, the same questionnaire takes 3–5 business days from a prepared answer bank, or 5–10 business days for a first-time response requiring answer bank creation.

What is the SIG questionnaire?

The SIG (Standardised Information Gathering) questionnaire is the most common enterprise vendor risk assessment tool, created by Shared Assessments. It covers 19 risk domains including information security, cloud services, data privacy, business continuity, and (in recent versions) AI governance. The full SIG has over 1,000 questions; the SIG Lite is a shorter version used for lower-risk vendors.

Do I need SOC 2 or ISO 27001 to pass a security questionnaire?

Not necessarily — but having a certification dramatically accelerates questionnaire responses. Certification answers dozens of questions automatically and signals to the buyer's security team that your controls have been independently validated. For AI startups in active enterprise sales, we typically recommend pursuing certification alongside questionnaire support for maximum deal velocity.

What happens if the buyer follows up with more questions?

Enterprise buyers often follow up with clarifying questions or schedule a customer security call (sometimes called a security review call or vendor security review). ProtectifyAI manages follow-up questions and can join or lead customer security calls on your behalf — ensuring your answers are consistent and your team doesn't need to become security experts.

Can you help with AI governance questions in security questionnaires?

Yes. Enterprise buyers increasingly include AI-specific sections in their questionnaires covering model transparency, training data, bias assessment, EU AI Act compliance, and AI governance frameworks. These are some of the hardest questions for AI startups to answer accurately — and getting them wrong can stall deals or create legal exposure. ProtectifyAI drafts AI governance answers that are accurate, proportionate, and consistent with your technical reality.

Related services

Got a questionnaire sitting in your inbox?
Bring it to a working session.

We'll scope the response, identify the hard questions, and tell you exactly how we'd handle it. 45 minutes.

Book a working session →