NIST SP 800-171 Rev 3 covers 58.1% of ISO 27001:2022
54 of the 93 controls in ISO 27001:2022 are already satisfied by evidence you collected for NIST SP 800-171 Rev 3. 39 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
ISO 27001:2022 has 93 controls. Holding NIST SP 800-171 Rev 3 already evidences 54 of them, so the work in front of you is 39 controls, not 93, which is 42% 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 54 controls of ISO 27001:2022 you do not have to implement again, which is $5.54 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 54 already evidenced are | 216 hours | 432 hours | 864 hours |
| and the 39 remaining are | 156 hours | 312 hours | 624 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 ISO 27001:2022 your NIST SP 800-171 Rev 3 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.
148 candidate mappings were examined and 0 were removed. Signed off 2026-08-19.
Claims that did not hold
Nothing proposed for this pair was rejected in review. That is unusual and worth knowing rather than hiding: it means the candidate set was small and every candidate held.
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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