NIST SP 800-171 Rev 3 covers 42.6% of SOC 2
26 of the 61 controls in SOC 2 are already satisfied by evidence you collected for NIST SP 800-171 Rev 3. 35 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 SOC 2 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.
98 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.
Marking media with distribution limits and handling caveats evidences identification of confidential information.
Requires identifying and documenting where CUI resides and which components process it.
Sanitizing or destroying media before disposal, release or reuse, with verification, is the disposal evidence.
Rules of behavior communicate user responsibilities and require acknowledgment before access is granted.
Requires developing, documenting and disseminating policy and procedures across every security family.
Requires responding to findings by accepting, transferring, mitigating or avoiding, which determines how risks are managed.
Risk assessments covering likelihood and impact across confidentiality, integrity and availability directly satisfy risk identification and analysis.
Risk assessments must be updated when significant changes occur, matching the change assessment requirement.
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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