Preparation

Security Questionnaire Checklist: Evidence to Gather Before You Start

Gather current policies, proof that controls operate, clear scope, named owners, and review dates before drafting. A small approved source set is safer than a large folder nobody has checked.

Use this rule: every file in the evidence pack needs an owner, effective date, scope, and approval state. If one is missing, treat the file as a lead until someone validates it.

Copyable evidence checklist

  • Information security policy
  • Access control and identity policy
  • Encryption and key-management standard
  • Secure development policy
  • Vulnerability and patch process
  • Incident response plan
  • Business continuity and recovery plan
  • Vendor risk process
  • Data retention and deletion policy
  • Privacy policy and data-processing terms
  • Architecture and data-flow diagram
  • Subprocessor list
  • Current audit reports or certificates
  • Penetration-test summary and remediation state
  • Control test results
  • Current product and environment scope
  • Named control owners
  • Document effective and review dates
  • Known exceptions and compensating controls
  • Approved prior answers with source links

Sort the packet by what it proves

Evidence typeWhat to checkCommon questions it supports
PolicyApproved, current, and applies to the named productGovernance, access, encryption, response, retention
Operating proofTest date, result, reviewer, and unresolved exceptionsControl effectiveness, reviews, testing cadence
ArchitectureEnvironment, boundaries, data stores, and subprocessorsHosting, data flow, isolation, residency
Contract or privacy termCurrent language and covered customer or planDeletion, breach notice, retention, data use
Audit or certificationEntity, system, period, scope, and exclusionsSOC 2, ISO, PCI, or other attestations

Prepare the packet in four steps

  1. List the question domains

    Scan the questionnaire for access, data protection, development, incident response, recovery, privacy, vendor, and compliance topics.

  2. Choose one current source per domain

    Prefer approved sources with clear scope. Add operating proof where a policy describes intent but not whether the control works.

  3. Add owner, date, and exception fields

    Make the person and review state visible. This turns a document pile into a controlled evidence pack.

  4. Remove duplicate and stale material

    Archive superseded versions. When two current sources conflict, flag the conflict before anyone drafts an answer.

Apply one evidence boundary

Mark a claim Supported only when current, in-scope evidence proves it. Use Needs review when evidence is partial, stale, or conflicting. Use Unknown when the approved packet does not answer the question.

A safe synthetic example

Evidence register entry

Source: Access Control Policy v4.2 · Owner: Security lead · Effective: May 1, 2026 · Scope: Production SaaS

Supports: MFA, least privilege, access reviews, offboarding.

Does not prove: That the quarterly review ran on time. Attach the latest review record for that claim.

Common mistakes

  • Using a policy as proof that a control operated.
  • Missing the system or legal entity covered by a certificate.
  • Keeping several versions of the same source in the active pack.
  • Uploading contracts or reports without checking whether their disclosure is allowed.
  • Assuming the cloud provider's control automatically proves the customer's application control.

How SaneCite handles this

You choose which documents SaneCite may use as evidence. It drafts from those sources, shows the citation behind supported answers, and sends uncovered questions to review instead of filling gaps.

Questions people ask

Do I need every document on this list?
No. Gather what applies to the questionnaire and your product. More files can create more conflict when their status and scope are unclear.
Can a trust center replace the evidence pack?
It can supply useful public proof, but many questions require internal scope, owner, test, or contract details that a trust center does not contain.
How often should I review the pack?
Review it when a source changes and on a regular schedule set by your risk program. High-change controls need shorter review periods.

Primary sources

Published July 26, 2026. No material revisions yet.

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