A diligence request that arrives at the worst possible time
Cloud and application security due diligence can form part of a funding round. Preparing architecture, access and remediation evidence before a request arrives can help a team answer clearly during a time-sensitive transaction. NIST SP 800-218: Secure Software Development Framework
Agree the diligence scope before gathering evidence
The reviewer’s questions depend on the transaction, product and agreed scope. Ask for the request list, review period, confidentiality terms and decision timetable. Do not assume that every investor uses the same control checklist or treats a finding in the same way.
Useful evidence categories to prepare
Cloud posture and architecture: how production environments are configured, who has access to them, and whether that access is reviewed on a defined cadence rather than accumulated informally as the team has grown.
Application security practice: whether security review is built into the development lifecycle, or treated as a late-stage gate applied inconsistently, or skipped under deadline pressure.
Data handling: where customer data actually lives, who can access it, and whether that matches what the company’s own privacy and security representations claim.
Incident history and response readiness: not whether an incident has ever occurred, but whether the company has a coherent, rehearsed process for responding if one does — the absence of past incidents is not itself evidence of readiness.
Preparing before the request arrives, not after
A useful preparation pack describes the current environment, known gaps and the plan to address them. Name who verified each item and when. This supports a clearer review but does not guarantee a funding decision, valuation or timetable.
Prepare a dated architecture and remediation record, then reconcile it to the actual production environment. Clearly identify untested assumptions so a reviewer can distinguish demonstrated controls from planned improvements.
Where this fits into a broader security programme
Depending on scope, this typically starts with the same architecture and threat review used for any cloud and application security engagement — the difference is timing it ahead of a funding process rather than reacting to a diligence request once it lands.
An evidence-room checklist for a scoped review
NIST’s Secure Software Development Framework offers a reference for discussing development practices; it is not an investor checklist or a funding requirement. The evidence-room process below is our practical preparation recommendation. NIST SP 800-218: Secure Software Development Framework
- Architecture: show production boundaries, data flows, cloud accounts and critical external services. State what is excluded. Use a diagram version and an accountable engineer so reviewers can ask about a specific configuration rather than an undated slide.
- Access: supply redacted evidence of privileged-access review, joiner/leaver handling and production deployment authority. Remove tokens, passwords and unnecessary personal data. Give reviewers time-limited access to a controlled repository instead of emailing unrestricted exports.
- Development: explain where threat review, code review, dependency checks and testing occur. Link a sample release to the checks actually performed. Label a proposed process as planned rather than presenting it as established practice.
- Findings: record each material issue’s affected service, validation date, risk reasoning, owner and remediation target. Distinguish a tool alert from a confirmed finding and attach closure evidence when a fix has been retested.
- Response and recovery: provide a proportionate exercise record and restoration evidence. State the environment tested and limitations; a successful development restore does not prove that production recovery objectives have been met.
Maintain an access log for the evidence room and withdraw permissions when the review ends. Agree how sensitive vulnerability details will be discussed, who can receive them and how corrections will be communicated. Resolve conflicting claims across the sales deck, privacy notice, security questionnaire and actual configuration before making a formal representation.