NIST SP 800-172 covers 21.5% of NIST SP 800-161 Rev 1
41 of the 191 controls in NIST SP 800-161 Rev 1 are already satisfied by evidence you collected for NIST SP 800-172. 150 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.
This number is directional. It says how much of NIST SP 800-161 Rev 1 your NIST SP 800-172 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.
80 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.
Secure information transfer solutions control information flows between security domains on connected systems.
Dual authorization splits execution of critical or sensitive operations between two parties.
Awareness training expressly covers social engineering, advanced persistent threat and supply chain attacks.
Ongoing monitoring with advanced detection reviews activity for anomalous or suspicious behaviour.
Supply chain risk treated as a continuing cycle of identification, response and ongoing monitoring.
Authoritative source and repository governs which software components are approved and vetted for use.
Only software drawn from the trusted authoritative repository may be installed on systems.
Persistent storage locations reviewed at defined frequency, which identifies where information actually sits.
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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