Security Questionnaires

Why They Exist

Enterprise customers need to understand the risk their vendors introduce. A data breach at a small service provider can become a breach at the large enterprise they serve — this is how many high-profile incidents have unfolded. Regulatory frameworks (SOC 2, HIPAA, PCI-DSS, NYDFS) increasingly require organizations to assess vendors systematically. Cyber insurance applications have become substantially more detailed for the same reason.

Common Formats

• SIG / SIG Lite — Shared Assessments standard
• CAIQ — Cloud Security Alliance; cloud-specific
• VSA — Vendor Security Alliance questionnaire
• Custom questionnaires — individual enterprise customers, based on their own risk framework
• Cyber insurance applications — increasingly thorough, particularly regarding ransomware controls
• NIST-based assessments — covering Identify, Protect, Detect, Respond, Recover

What Every Questionnaire Is Really Asking

Regardless of format, questionnaires consistently assess these domains:

Identity and Access Management: Who has access to what? Is access least-privilege? How is access reviewed and revoked? Is MFA enforced? How is privileged access managed?

Data Security: What data do you store? How is it classified? Encrypted at rest and in transit? Where is it stored? What are the retention and disposal policies?

Network Security: How is the network segmented? What perimeter security exists? How is traffic monitored and logged?

Endpoint Security: What controls exist on devices that access company systems? EDR/antivirus? MDM enrollment? Disk encryption? Screen lock?

Vulnerability Management: How are vulnerabilities identified? What is the patching timeline? Is there a vulnerability scanning program?

Incident Response: Is there a documented plan? What is the breach notification process? Has the plan been tested?

Business Continuity: Backup procedures and frequencies? Has recovery been tested? What are RTO and RPO targets?

Third-Party Risk: How do you assess the security posture of your own vendors?

Building Your Documentation Library

Organizations that respond quickly and accurately have already built their documentation:

1. Information Security Policy — the parent document that sets intent and governance
2. Access Control Policy — how access is requested, granted, reviewed, and revoked
3. Data Classification Policy — how different categories of data are handled
4. Incident Response Plan — procedures for detecting, containing, and reporting incidents
5. Business Continuity / DR Plan — backup procedures, recovery objectives, testing cadence
6. Vendor Management Policy — how you assess your own third-party providers
7. Acceptable Use Policy — what employees can do with company systems
8. Patch Management Policy — how and when systems are updated

This documentation serves two purposes: it demonstrates to customers that security has been thoughtfully considered, and it forces your organization to actually define and implement these controls rather than assuming they exist because someone is informally doing the right thing.

On Honesty

Inflating your security posture on a questionnaire creates two problems. If you represent controls you don't have and experience a breach, the inaccurate representation becomes part of the incident. And enterprise customers who perform rigorous assessments will find the gaps during due diligence anyway.

Most sophisticated enterprise customers would rather work with a vendor who has clearly identified their gaps and has a roadmap to close them than one who overstated their posture and can't substantiate it under scrutiny.