Fill out a security questionnaire online — AI-powered, source-cited answers

A prospect just sent you a 150-question security questionnaire. It's a mix of encryption questions, access control policies, incident response procedures, and vendor management details. You need it done by end of week, and you have actual work to do.

Here's how to fill out a security questionnaire online — properly, with source citations, in about 15 minutes.

The problem with doing it manually

You already know the pain:

• Questions are scattered across domains. One question asks about encryption (ask the CTO). Next asks about employee background checks (ask HR). Then data retention (ask legal). A single questionnaire touches 4–6 teams.
• Your answers live in 8 different places. SOC 2 in Google Drive. Policies in Notion. Last quarter's DDQ in someone's Downloads folder. Pen test results in a vendor portal.
• Every questionnaire asks the same things differently. "Describe your encryption at rest" vs. "Do you encrypt stored data? If yes, describe." Same question, 47 different phrasings across SIG, CAIQ, and custom formats.

The result: you spend 4–8 hours per questionnaire doing Ctrl+F across multiple documents, copy-pasting, and manually reformatting answers.

A faster way: AI + your own documents

The concept is simple: instead of you searching through your documents for each question, AI does it — and cites its sources.

Here's the workflow with FillBase:

1. Build your knowledge base once (10 minutes, one-time)

Upload the documents that contain your security answers:

• SOC 2 Type II report (covers 40–60% of questions on its own)
• Information Security Policy
• Data Retention Policy
• Incident Response Plan
• Access Control Policy
• Business Continuity Plan
• Previously completed questionnaires

You don't need all of these on day one. Start with your SOC 2 and 2–3 policies — you can add more anytime.

2. Drop in the security questionnaire (1 minute)

Upload the file — Excel, Word, or PDF. FillBase parses the structure automatically. It handles:

• Multi-column Excel spreadsheets with different question/answer columns
• Word documents with nested tables
• PDF forms with fillable fields
• Multi-tab workbooks where each tab is a different section

3. Get source-cited answers (automatic)

For each question, the AI:

1. Searches your knowledge base for relevant information
2. Generates an answer using only your documents (not generic internet knowledge)
3. Attaches a source citation: "Information Security Policy v2.1, Section 4.3"
4. Assigns a confidence score

High-confidence answers are ready to approve. Low-confidence answers are flagged for your review.

4. Review and export (10 minutes)

Focus on flagged answers — typically 10–15% of the questionnaire. Everything else is pre-filled and source-cited. Export in the original format and send it back.

What types of security questionnaires does this work for?

All of them. The AI doesn't care about the format or framework — it parses questions and matches them to your knowledge base.

Standardized frameworks:

• SIG (Standardized Information Gathering) — The 800+ question behemoth. AI handles the repetition; you handle the 50 questions that are actually unique to your company. See our guide on how to answer a SIG questionnaire fast.
• CAIQ (Consensus Assessment Initiative Questionnaire) — Cloud-focused, 300+ questions. Heavy overlap with SOC 2 scope, so accuracy is typically very high.
• VSAQ (Vendor Security Assessment Questionnaire) — Varies by vendor, but 70% of questions are standard.

Custom questionnaires:

• Enterprise buyers who send their own Excel/Word templates
• DDQs (Due Diligence Questionnaires) from procurement teams
• RFP security sections
• Vendor onboarding forms

The AI handles format differences automatically. A question about encryption is a question about encryption, whether it's in column B of an Excel tab or paragraph 4.2.1 of a Word document.

How accuracy works

First-time accuracy depends on your knowledge base:

Every questionnaire you complete improves the next one. When you correct an answer, that correction becomes part of your knowledge base. After 5–10 completed questionnaires, most teams hit 90%+ auto-fill rates.

Why source citations matter

Enterprise buyers don't just want answers — they want proof. "Yes, we encrypt data at rest" is less convincing than "Yes, we encrypt data at rest using AES-256 (SOC 2 Type II Report, Control CC6.1, page 34)."

Source citations:

• Build trust — The buyer can verify your claims against the cited document
• Reduce follow-ups — Buyers who see citations ask fewer clarification questions
• Prevent contradictions — When answers are grounded in the same source documents, they stay consistent across questionnaires

FillBase attaches a citation to every answer. If the AI can't find a source, it flags the question for your input rather than guessing.

What about ongoing questionnaire volume?

If you're getting 3–5 security questionnaires per month, the math changes from "nice to have" to "operational necessity."

Manual approach at scale:

• 5 questionnaires × 6 hours each = 30 hours/month
• Usually done by CTO, VP Engineering, or a senior security engineer
• At $150–200/hour loaded cost = $4,500–6,000/month in engineering time

Automated approach:

• 5 questionnaires × 20 minutes each = ~2 hours/month
• Review only — no hunting through documents
• Consistent answers across all questionnaires

The ROI calculation for automation is straightforward once you pass 2 questionnaires per month.

Common concerns

"Will AI hallucinate answers?" Not if it's grounded in your documents. FillBase only generates answers from your uploaded knowledge base — it doesn't use general internet knowledge or training data. If there's no relevant source, it flags the question rather than fabricating an answer.

"What about questions that change quarter to quarter?" Questions like "Date of last penetration test" or "Current number of employees" change over time. Update the relevant document in your knowledge base, and all future answers reflect the new information.

"Can I share access with my team?" Yes. Security questionnaires often need input from engineering, legal, HR, and compliance. FillBase works through Slack — it pings the right person when it needs an answer it can't find in the knowledge base.

"Is there a free option?" FillBase's free tier covers 200 requirements per month. For a typical 100–150 question security questionnaire, that's 1–2 questionnaires per month at no cost.

Start filling out security questionnaires in minutes

You don't need a demo. You don't need to talk to sales. Sign up for free, upload your SOC 2, and complete your first security questionnaire online in under 15 minutes.

Every questionnaire you complete makes the next one faster.