ISO 27001:2022 covers 62.9% of NIST SP 800-171 Rev 3
61 of the 97 controls in NIST SP 800-171 Rev 3 are already satisfied by evidence you collected for ISO 27001:2022. 36 are genuine gaps. Every claim below was judged against both control sets and then argued against; the ones that did not survive are published further down with the reason each failed.
What this leaves you to do
NIST SP 800-171 Rev 3 has 97 controls. Holding ISO 27001:2022 already evidences 61 of them, so the work in front of you is 36 controls, not 97, which is 37% of the standard rather than all of it.
That is the whole claim. Every number in that sentence comes from the two counts above it and can be re-derived from the free tools without taking our word for any of it.
In money, using only our numbers. The full report is $299 and names 61 controls of NIST SP 800-171 Rev 3 you do not have to implement again, which is $4.90 per control identified. That arithmetic uses our price and our count and assumes nothing about you.
In your hours, using your assumption. We do not know what a control costs you to implement, so pick the column that looks like your organisation. These are your figures, not our claim.
| If a control takes you | 4 hours | 8 hours | 16 hours |
|---|---|---|---|
| the 61 already evidenced are | 244 hours | 488 hours | 976 hours |
| and the 36 remaining are | 144 hours | 288 hours | 576 hours |
Multiply by your own rate. We publish no rate because we have not measured yours, and a number built on an invented rate is the kind of claim this platform exists to argue against.
This number is directional. It says how much of NIST SP 800-171 Rev 3 your ISO 27001:2022 evidence satisfies. The reverse pair is a different number, often very different, because a security standard has enormous depth for access control and almost none for lawful basis or data subject rights.
134 candidate mappings were examined and 6 were removed. Signed off 2026-08-19.
Claims that did not hold
6 proposed mappings for this pair were rejected. They are kept in the graph rather than deleted, so what was thrown out is as inspectable as what survived. A crosswalk that never rejects anything is not being judged.
The full report
Everything above is a sample. The report is every evidenced control and every gap, with the reasoning and the source document behind each one, in a form you can hand to an assessor. $299, emailed immediately.
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