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, review level machine verified. Mappings were judged by Claude Code rather than read line by line by a practitioner. Every claim shows its reasoning so you can check it. Ask and a practitioner will review this pair.
Where the gaps are
Coverage is never evenly spread. A source standard usually satisfies one part of a target almost completely and barely touches another, and which part is which is the thing worth knowing before you plan the work.
Theme level, not control level, deliberately. The per-control list of what is evidenced and what is a gap is the report itself, so publishing it here would be publishing the thing being sold.
Claims that held
A sample. Each one names the control whose evidence does the work, the control it satisfies, and why.
Requires documented, disseminated and periodically reviewed security policy and procedures per control family.
Rules of behavior define acceptable use of systems and information and require signed acknowledgement.
Termination and transfer process explicitly requires retrieval of organizational property and revocation of credentials.
CUI media marking with distribution limitations and handling caveats is the labelling evidence an assessor wants.
Information exchange agreements and approval of CUI exchange are the transfer rules and agreements required.
Enforcement of approved authorizations against a documented access control policy is the core of this control.
Identifier management covers authorization, assignment, and reuse prevention across the identity life cycle.
Account creation, modification, disabling and removal is the account side of identity life cycle management.
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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