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What supply chain questions should you rehearse before a diligence call?

Ten supply chain questions an engineering lead should be ready to answer in two minutes each, with a note on the evidence that backs every answer.

Safeguard Security Team
4 min read

Rehearse ten questions: what open source you use, how you track it, how fast you fix serious vulnerabilities, who can change production, how builds are protected, what license risks exist, what past incidents occurred, what is end of life, who maintains what, and what you would fix first. Have a two minute answer and an artifact for each.

Why rehearse

Diligence calls are short and technical reviewers ask follow ups. Founders who have never written their answers down tend to ramble, contradict the questionnaire or promise things they cannot show. Practising with a colleague playing the buyer exposes weak spots while there is time to fix them.

The ten questions

QuestionTwo minute answer includesEvidence to point to
1. What open source do you ship?Where the list lives and how often it refreshesLatest SBOM, dated
2. How do you learn about new vulnerabilities?Source, owner, response timeAlert routing, ticket examples
3. How quickly do you fix critical ones?A target and the real recordClosed tickets with dates
4. Which findings are open today?Count by severity, top itemsKnown issues register
5. Who can change production?Roles, approvals, MFAAccess export, branch rules
6. How are builds protected?CI permissions, pinned actions, secrets handlingWorkflow files, settings
7. What are your license obligations?Copyleft present or not, policyLicense report, policy
8. Have you had security incidents?Facts, timeline, fixIncident log
9. What is out of support?Runtimes, packages, systemsEOL list with dates
10. What would you fix with more time?One honest priorityRoadmap item

How to practise

  1. Assign the questions to the people who actually know, not to whoever is most senior.
  2. Each person writes a one paragraph answer and lists the artifact.
  3. Run a thirty minute mock call. The listener interrupts with "show me".
  4. Fix anything that could not be shown: create the record, correct the answer, or drop the claim.
  5. Agree who speaks to what, and who says "we will follow up in writing".

Answers that work

Short, specific and bounded. "We generate an SBOM at each release and store it with the build. The last one was 14 October. It covers the API and web app, not the mobile client, which has its own." That tells the buyer what exists and where it stops.

Answers that hurt

Absolutes such as "we never" and "all of our". Vague comfort such as "we take security seriously". Numbers you cannot source. And inconsistency: if the questionnaire says two weeks and the ticket history says two months, the buyer will notice.

When you do not know

Say so, name who will find out, and set a date. A prompt written follow up reads as competence. A guess that turns out wrong reads as a risk.

Try it yourself

Click through it at your own pace, or open it full screen.

Use it to practise explaining why a flagged vulnerability does or does not matter in your product, which is what question 4 turns into.

Safeguard provides reachability analysis, SBOM and dependency scanning and compliance evidence automation that produce several of these artifacts. A free scan gives you a first set of findings to rehearse with.

Quick check

Should the CEO or the CTO lead the call?

Whoever owns the facts. Let the engineering lead answer technical questions and the CEO cover commitments.

Can I share the rehearsal answers in the data room?

Share the evidence, not the script. The answers should be consistent with your written documents.

Last reviewed: 19 October 2026.

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