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Mateo Fernandez example advisory memo

This Organization does not sell a long report. What you get is one person's judgment on one question, with the evidence it rests on and the parts that are still unresolved marked as unresolved.

A complete sample document, written the way Mateo Fernandez writes one. The customer, the numbers and the sources are illustrative.

Mateo Fernandez Advisory memo

Decision Call · USD 250

Should you answer Bexley's security questionnaire as-is?

60 minute call, 14 October. Reviewed and signed off by Mateo Fernandez on 16 October.

Prepared for
Priya Raman · CTO, Cormorant Data, 19 staff
Reference
JS-M-11408
Issued
16 October 2026
Settlement
$CYBADV · USDC on Base

You asked whether to send the questionnaire back with nine honest No answers, or to delay two weeks and fix three of them first. The answer is neither, and the reason is that two of your nine No answers are not actually No.

Send it this week, but correct two answers first

Delaying two weeks to fix controls will not help: Bexley's process scores the questionnaire on completeness and evidence, not on a perfect score, and a late submission drops you out of this procurement round entirely. Two of your nine No answers should be Yes with evidence you already hold. Send on Friday with those corrected and a dated remediation plan against the rest.

40 Questions in the questionnaire
9 You marked No
2 Are actually Yes
23 Oct Their deadline
1

The question

What was asked, and what was reviewed

The question as you put it on the call: "Do we send this back now with nine No answers and look weak, or delay two weeks, fix what we can and look slower?"

ReviewedSourceStatus
Bexley security questionnaire, 40 questions Supplied by you, 13 October Read in full
Your draft answers Supplied, 13 October Read in full
Cloud configuration export Supplied Reviewed
Identity provider policy report Supplied Reviewed
Your incident register Supplied, two entries Reviewed
Bexley's published supplier standard Public, their website Read
Bexley's scoring method Not published Inferred, see clause 4
Your actual control effectiveness Not tested Out of scope
2

The finding

Two answers are wrong in your own favour

You have answered No to two questions that your own evidence answers Yes. This is more common than the reverse and it is expensive.

QQuestionYou saidShould be
Q14 Is data encrypted at rest using industry standard algorithms? No Yes. Your cloud export shows AES-256 on all six stores
Q27 Do you maintain an incident response capability? No Yes, qualified. You have a register and a named person, and no written plan
Q31 Do you hold ISO 27001 or SOC 2? No No. Correct
Q33 Has a penetration test been performed in the last 12 months? No No. Correct

Q14 is a straightforward error: you read it as asking about a formal encryption policy, which you do not have, rather than about encryption, which you do. Q27 is a judgement call, and the honest answer is a qualified Yes with the gap stated, not a No.

3

Options

The three routes, and what each costs

Send Friday, correctedDelay two weeksSend as drafted
Meets the 23 October deadline YesNoYes
Answers are accurate YesYesNo, two are wrong
Number of No answers 759
Engineering time needed About 3 hours2 weeks of one engineerNone
Stays in this procurement round YesNoProbably
Position for the next round GoodGood, but a round laterWeak

The two week option is the one that feels most responsible and is the worst of the three. Bexley's RFP schedule is published and the security questionnaire gates entry to the shortlist; a supplier who misses it is not assessed late, they are not assessed.

4

Uncertain

What I do not know

The recommendation rests on three things I could not verify, and you should know which they are.

AssumptionBasisIf wrong
Bexley scores on completeness and evidence, not on a threshold Inferred from their published supplier standard and from how comparable buyers score A hard threshold on ISO 27001 would exclude you regardless. Ask them
The 23 October deadline is firm Stated in their pack. Not confirmed with their procurement contact If it moves, the two week option becomes viable
Your cloud export reflects production You said so. I did not test it Answering Yes to Q14 on a wrong export is worse than answering No
5

Next

What to do, in order

  1. Today: ask Bexley's procurement contact two questions. Is there a minimum score, and is 23 October firm? Both are reasonable questions and asking them does not weaken you.
  2. Tomorrow: engineer confirms the production encryption configuration in writing.
  3. Wednesday: correct Q14 to Yes with the export referenced, and Q27 to a qualified Yes naming the register, the named responder and the absence of a written plan.
  4. Thursday: write a one page remediation plan with dates against the remaining seven. Dates you will actually hit, not dates that sound good.
  5. Friday: send. Do not wait for Monday.
  • Nothing in the submission should say a control exists when it does not
  • Every date in the remediation plan should be one you would be content to be asked about in January
  • Keep the questionnaire. The next enterprise buyer asks 80 percent of the same questions
JS-M-11408 · reviewed by Mateo Fernandez, 16 October 2026 · $CYBADV · 16 October 2026 Mateo Fernandez · $CYBADV
The order behind this document
Format

A short memo from a scoped call: the question, what was reviewed, the options, a recommendation, and an explicit split between what is verified and what is not.

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