TheArtOfService
CMMC 2.0NIST SP 800-53 Rev 5

CMMC 2.0 covers 28.7% of NIST SP 800-53 Rev 5

86 of the 300 controls in NIST SP 800-53 Rev 5 are already satisfied by evidence you collected for CMMC 2.0. 214 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.

28.7%
of the target already covered
86
controls evidenced
214
genuine gaps
121
claims rejected in review

This number is directional. It says how much of NIST SP 800-53 Rev 5 your CMMC 2.0 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.

257 candidate mappings were examined and 121 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.

MP - Media Protection6 of 8 evidenced, 2 to do
AC - Access Control14 of 23 evidenced, 9 to do
AU - Audit and Accountability9 of 15 evidenced, 6 to do
CM - Configuration Management8 of 14 evidenced, 6 to do
MA - Maintenance4 of 7 evidenced, 3 to do
IR - Incident Response5 of 9 evidenced, 4 to do
AT - Awareness and Training2 of 5 evidenced, 3 to do
IA - Identification and Authentication5 of 13 evidenced, 8 to do
CA - Assessment, Authorization, and Monitoring3 of 8 evidenced, 5 to do
PS - Personnel Security3 of 9 evidenced, 6 to do
RA - Risk Assessment3 of 9 evidenced, 6 to do
SC - System and Communications Protection12 of 47 evidenced, 35 to do
PL - Planning2 of 8 evidenced, 6 to do
PE - Physical and Environmental Protection5 of 22 evidenced, 17 to do
SI - System and Information Integrity4 of 22 evidenced, 18 to do
SA - System and Services Acquisition1 of 17 evidenced, 16 to do
CP - Contingency Planning0 of 12 evidenced, 12 to do
PM - Program Management0 of 32 evidenced, 32 to do
PT - PII Processing and Transparency0 of 8 evidenced, 8 to do
SR - Supply Chain Risk Management0 of 12 evidenced, 12 to do

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.

AC.L2-3.1.10NIST800-AC-11argued against and upheld
Device lock

Session lock with pattern hiding displays after inactivity is device lock.

AC.L2-3.1.11NIST800-AC-12argued against and upheld
Session control

Terminating a user session after a defined condition is session termination.

AC.L2-3.1.15NIST800-AC-17argued against and upheld
Remote access

Authorizing remote execution of privileged commands derives from an AC-17 enhancement.

AC.L2-3.1.14NIST800-AC-17argued against and upheld
Remote access

Routing remote access via managed access control points derives from an AC-17 enhancement.

AC.L2-3.1.13NIST800-AC-17argued against and upheld
Remote access

Cryptographic protection of remote access confidentiality derives from an AC-17 enhancement.

AC.L2-3.1.12NIST800-AC-17argued against and upheld
Remote access

Monitoring and controlling remote access sessions is the base of AC-17.

AC.L2-3.1.17NIST800-AC-18argued against and upheld
Wireless access

Protecting wireless access with authentication and encryption derives from an AC-18 enhancement.

AC.L2-3.1.16NIST800-AC-18argued against and upheld
Wireless access

Authorizing wireless access before allowing connections is the base of AC-18.

Claims that did not hold

121 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.

AC.L2-3.1.10NIST800-AC-12
Session control

Held back 2026-08-19. Generated by the retired metered path, refuted at 56 percent wherever re-judged. Pair pulled from sale pending a rebuild on the Max plan.

Claimed at high confidence before it was rejected.

SC.L2-3.13.16NIST800-AC-19
Access control for mobile devices

retired metered-API path. 56 percent of its output was refuted wherever it was re-judged, so its residue is not trusted evidence. Superseded by judgement on the Claude Max plan 2026-08-19.

Claimed at medium confidence before it was rejected.

AC.L2-3.1.6NIST800-AC-3
Access enforcement

retired metered-API path. 56 percent of its output was refuted wherever it was re-judged, so its residue is not trusted evidence. Superseded by judgement on the Claude Max plan 2026-08-19.

Claimed at medium confidence before it was rejected.

AC.L2-3.1.7NIST800-AC-3
Access enforcement

retired metered-API path. 56 percent of its output was refuted wherever it was re-judged, so its residue is not trusted evidence. Superseded by judgement on the Claude Max plan 2026-08-19.

Claimed at medium confidence before it was rejected.

AC.L2-3.1.5NIST800-AC-3
Access enforcement

Held back 2026-08-19. Generated by the retired metered path, refuted at 56 percent wherever re-judged. Pair pulled from sale pending a rebuild on the Max plan.

Claimed at high confidence before it was rejected.

AT.L2-3.2.2NIST800-AT-1
Policy and procedures for awareness and training

Held back 2026-08-19. Generated by the retired metered path, refuted at 56 percent wherever re-judged. Pair pulled from sale pending a rebuild on the Max plan.

Claimed at high confidence before it was rejected.

AT.L2-3.2.1NIST800-AT-1
Policy and procedures for awareness and training

Held back 2026-08-19. Generated by the retired metered path, refuted at 56 percent wherever re-judged. Pair pulled from sale pending a rebuild on the Max plan.

Claimed at high confidence before it was rejected.

AT.L2-3.2.2NIST800-AT-2
Literacy training and awareness

Held back 2026-08-19. Generated by the retired metered path, refuted at 56 percent wherever re-judged. Pair pulled from sale pending a rebuild on the Max plan.

Claimed at high confidence before it was rejected.

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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