You’re two days from closing a deal and a 200-question spreadsheet lands in your inbox. Sound familiar? Here’s the thing: roughly 80% of those questions pull from the same pool. The same common vendor security questions show up in SOC 2 reviews, ISO 27001 audits, DDQs (due diligence questionnaires), HECVAT forms for higher education, and custom security assessments alike. If you can answer these ten cold, without scrambling through Slack threads or digging through last quarter’s Google Drive, you can turn a five-day fire drill into a few focused hours. Below are the ten questions you will see on nearly every vendor security assessment in 2026, along with model answers and the reasoning behind each one. Bookmark this, share it with your team, and stop losing nights to questions you should already have locked down.
1. Do you encrypt data at rest and in transit?
This is the single most universal question across every security questionnaire format in existence.
Why they ask: Encryption is table stakes. Prospects and their security teams want confirmation that even if someone gains unauthorized access to your infrastructure or intercepts network traffic, the data is unreadable. Model answer: “Yes. All customer data is encrypted at rest using AES-256 and in transit using TLS 1.2 or higher. Encryption keys are managed via [your KMS provider, e.g., AWS KMS] with automatic rotation.” Be specific about the algorithms and key management. A vague “yes, we encrypt everything” without details will trigger follow-up questions and slow the deal down. If you’re running on AWS, GCP, or Azure, most of this is handled at the infrastructure level, so document it once and reference it every time.
2. Describe your incident response process
Buyers want to know what happens when things go wrong, not just that you’ve tried to prevent problems.
Why they ask: Every framework from NIST CSF (the National Institute of Standards and Technology Cybersecurity Framework) to ISO 27001 Annex A requires a documented incident response plan. Your prospect’s security team needs confidence that you won’t go silent during a breach. Model answer: “We maintain a documented incident response plan covering identification, containment, eradication, recovery, and post-incident review. Our security team is alerted within 15 minutes via automated monitoring. Affected customers are notified within 72 hours per our SLA and GDPR obligations.” Include your notification timeline and escalation path. If you’ve actually run a tabletop exercise or responded to a real incident, say so. That kind of specificity builds trust faster than any certification logo on your website.
3. Do you conduct penetration testing?
Pen testing questions appear on virtually every vendor security assessment and custom DDQ.
Why they ask: Automated vulnerability scanning catches the obvious stuff. Penetration testing (where a human or specialized firm actively tries to break into your systems) catches the non-obvious stuff. Buyers want to know you’re stress-testing your defences regularly. Model answer: “Yes. We engage a third-party penetration testing firm to conduct annual application and infrastructure penetration tests. Results are remediated based on severity, with critical findings addressed within 48 hours. We can share a summary of our most recent test upon request under NDA.” Annual is the minimum expectation. If you’re doing it quarterly or continuously, that’s worth calling out. And having a shareable summary ready (not the full raw report) saves days of back-and-forth.
4. Who are your subprocessors?
This question has grown sharper since GDPR enforcement picked up and more SaaS companies rely on chains of third-party services.
Why they ask: Your prospect’s data doesn’t just live in your system. It flows through your infrastructure provider, your email service, your analytics tools, and potentially your AI model providers. Under GDPR and increasingly under CCPA, buyers need to know every entity that touches their data. Model answer: “We maintain a current subprocessor list that includes [e.g., AWS for hosting, Stripe for payments, SendGrid for transactional email]. This list is available at [URL] and updated whenever a subprocessor is added or removed. We notify customers of changes with 30 days’ notice.” Publish your subprocessor list publicly or make it easy to share. If a prospect has to email you and wait three days for a PDF, that’s wasted time on both sides.
5. Where is customer data stored?
Data residency questions have become non-negotiable, especially for companies selling into the EU, government, or regulated industries.
Why they ask: Data sovereignty laws vary by jurisdiction. A European buyer may need contractual assurance that their data stays within the EU. A US healthcare prospect may need to confirm data doesn’t leave the country. Model answer: “Customer data is stored in [specific region, e.g., AWS eu-west-1 (Ireland) for EU customers, us-east-1 (Virginia) for US customers]. We do not transfer customer data across regions without explicit customer consent. Backups are stored in the same region as the primary data.” Name the specific cloud region, not just the country. “Stored in Europe” is vague. “Stored in AWS eu-west-1, Dublin” is the kind of answer that closes the question immediately.
6. Do you have a SOC 2 report?
SOC 2 (System and Organization Controls 2) has become the default trust signal for B2B SaaS, and nearly every enterprise buyer asks for it.
Why they ask: A SOC 2 Type II report is an independent auditor’s verification that your security controls actually work over a period of time (typically 6 to 12 months). It covers trust service criteria like security, availability, and confidentiality. For many procurement teams, no SOC 2 means the deal stalls. Model answer: “Yes. We hold a current SOC 2 Type II report covering the Security and Availability trust service criteria. Our most recent report covers [date range] and was issued by [auditor name]. We can share it under NDA.” If you don’t have SOC 2 yet, be honest. Say where you are in the process and what timeline you’re working toward. A clear “we’re six weeks from our Type II” is far better than dodging the question.
7. How do you handle access deprovisioning?
This question targets one of the most common and dangerous security gaps: former employees or contractors retaining access to systems.
Why they ask: Access that lingers after someone leaves your company is a real risk vector. Frameworks like ISO 27001 (specifically control A.9 on access management) and SOC 2 both require documented processes for revoking access promptly. Model answer: “Access is deprovisioned within 24 hours of an employee’s departure, triggered by our HR system integration with our identity provider [e.g., Okta, Google Workspace]. All access changes are logged and reviewed quarterly. Privileged access (admin, database, production) is reviewed monthly.” Automation is the key word here. If your deprovisioning process is “the CTO remembers to revoke access on the person’s last day,” that’s a red flag reviewers will catch. Integrate your identity provider with your HR tooling so it happens automatically.
8. What is your data retention policy?
Buyers want to know how long you keep their data and what happens to it when the contract ends.
Why they ask: Holding data longer than necessary increases risk exposure. Under GDPR, CCPA (the California Consumer Privacy Act), and most procurement policies, companies expect vendors to delete data within a defined window after contract termination. Model answer: “Customer data is retained for the duration of the contract plus 30 days. After that window, all customer data is permanently deleted from production systems and backups. Customers can request early deletion at any time. We provide written confirmation of deletion upon request.” Specify the backup deletion timeline separately if it differs from production. Backups often linger longer than production data, and sophisticated reviewers will ask about that distinction specifically.
9. Do you use AI, and if so, how is customer data handled?
This question barely existed two years ago. In 2026, it appears on nearly every questionnaire and DDQ.
Why they ask: Your prospect needs to know whether their data is being fed into a third-party AI model, used for training, or processed in ways they haven’t consented to. With the EU AI Act in effect and increasing scrutiny from US regulators, this is no longer optional. Model answer: “Yes, we use AI for [specific function, e.g., generating draft responses to security questionnaires]. Customer data is processed via [provider, e.g., Azure OpenAI] under a data processing agreement that prohibits training on customer data. Data is not stored by the model provider after processing. Our AI pipeline uses a RAG architecture (retrieval-augmented generation), meaning responses are grounded in your uploaded policies, not generic training data.” If you’re using AI anywhere in your product, document the data flow explicitly. Which provider, what data goes in, whether it’s used for training, and where it’s processed. Saying “we use AI responsibly” without specifics will not satisfy a security reviewer in 2026.
10. What is your business continuity RTO?
RTO (Recovery Time Objective) tells the buyer how long they’ll be without your service if something catastrophic happens.
Why they ask: If your platform goes down, your customer’s operations may grind to a halt. They need to map your RTO against their own business continuity plan to understand their exposure. This question appears in NIST CSF, ISO 22301 (business continuity), and most enterprise security questionnaires. Model answer: “Our Recovery Time Objective is 4 hours for critical systems. We maintain automated failover across availability zones with daily backups tested quarterly. Our Recovery Point Objective (RPO) is 1 hour, meaning no more than 1 hour of data loss in a worst-case scenario. Our full business continuity plan is available upon request.” Be honest about your actual RTO, not the theoretical one. If you’ve never tested a failover, your real RTO is “unknown,” and that’s a problem worth fixing before it shows up on a questionnaire.
The Bottom Line: Answer Once, Reuse Everywhere
These ten questions form the backbone of virtually every vendor security assessment you’ll face in 2026. Whether it’s a formal SOC 2 review, an ISO 27001 audit, a HECVAT for a university deal, or a custom 300-row spreadsheet from a prospect’s procurement team, the same themes repeat: encryption, incident response, access control, data handling, and business continuity.
The real win here isn’t just knowing the answers. It’s having them documented, sourced, and ready to go so your team can respond in hours, not days. Write your model answers once. Store them in a single source of truth (not scattered across Google Docs and Slack threads). Review them quarterly. And when the next questionnaire arrives, you’ll be closing the deal while your competitors are still hunting for last year’s pen test summary.
If you’re tired of rebuilding these answers from scratch every time, ResponseHub can help. Upload your policies, and AI drafts answers grounded in your actual documentation, with citations to the exact page and section. Get started in under 5 minutes with a free trial, no sales call needed.
Frequently Asked Questions
How many security questionnaire questions are there on a typical vendor assessment?
Most vendor security assessments range from 50 to 300+ questions, but the core themes are remarkably consistent. The ten common vendor security questions covered here appear in some form on nearly every assessment, whether it’s a standardized format like SIG, CAIQ, or HECVAT, or a fully custom spreadsheet.
Do I need SOC 2 to sell to enterprise customers?
Not always, but it helps enormously. Many enterprise procurement teams treat SOC 2 Type II as a baseline requirement. If you don’t have one yet, be transparent about your timeline and offer alternative evidence like penetration test summaries, your security policy documentation, and infrastructure certifications from your cloud provider.
How often should I update my security questionnaire answers?
At minimum, review your answers quarterly and after any significant infrastructure change, policy update, or new subprocessor addition. Stale answers (referencing last year’s pen test or a departed employee as your security contact) erode trust and create risk.
What’s the fastest way to prepare for security questionnaires as a small team?
Start by documenting strong answers to the ten questions in this article. Store them in a centralized knowledge base, not in someone’s personal Google Drive. Tools like ResponseHub let you upload your policies and auto-generate draft answers grounded in your actual documentation, cutting response time from days to hours.
Are AI-related security questions required by compliance frameworks?
Not yet as a universal requirement across all frameworks, but they’re increasingly common. The EU AI Act introduces specific obligations, and many enterprise buyers now include AI-specific questions in their custom questionnaires regardless of framework requirements. If you use AI in your product, expect to answer these questions on every assessment in 2026.
