TheArtOfService
ISO 27002:2022NIST SP 800-53 Rev 5

ISO 27002:2022 covers 36.7% of NIST SP 800-53 Rev 5

110 of the 300 controls in NIST SP 800-53 Rev 5 are already satisfied by evidence you collected for ISO 27002:2022. 190 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.

36.7%
of the target already covered
110
controls evidenced
190
genuine gaps
244
claims rejected in review

What this leaves you to do

NIST SP 800-53 Rev 5 has 300 controls. Holding ISO 27002:2022 already evidences 110 of them, so the work in front of you is 190 controls, not 300, which is 63% of the standard rather than all of it.

That is the whole claim. We do not know your hourly rate, how long a control takes you, or how many people you have, so there is no figure here in dollars or weeks. 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.

This number is directional. It says how much of NIST SP 800-53 Rev 5 your ISO 27002:2022 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.

488 candidate mappings were examined and 252 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.

IR - Incident Response6 of 9 evidenced, 3 to do
PS - Personnel Security6 of 9 evidenced, 3 to do
CM - Configuration Management9 of 14 evidenced, 5 to do
MP - Media Protection5 of 8 evidenced, 3 to do
AT - Awareness and Training3 of 5 evidenced, 2 to do
PE - Physical and Environmental Protection13 of 22 evidenced, 9 to do
SR - Supply Chain Risk Management6 of 12 evidenced, 6 to do
CA - Assessment, Authorization, and Monitoring4 of 8 evidenced, 4 to do
SA - System and Services Acquisition8 of 17 evidenced, 9 to do
AC - Access Control10 of 23 evidenced, 13 to do
MA - Maintenance3 of 7 evidenced, 4 to do
CP - Contingency Planning5 of 12 evidenced, 7 to do
AU - Audit and Accountability5 of 15 evidenced, 10 to do
SI - System and Information Integrity6 of 22 evidenced, 16 to do
PL - Planning2 of 8 evidenced, 6 to do
IA - Identification and Authentication3 of 13 evidenced, 10 to do
RA - Risk Assessment2 of 9 evidenced, 7 to do
PM - Program Management7 of 32 evidenced, 25 to do
SC - System and Communications Protection7 of 47 evidenced, 40 to do
PT - PII Processing and Transparency0 of 8 evidenced, 8 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.

5.15NIST800-AC-1argued against and upheld
Access control policy and procedures

Rules to control access must be established, documented and implemented as policy.

7.7NIST800-AC-11argued against and upheld
Device lock

Clear screen requires devices to lock after a defined period of inactivity.

5.13NIST800-AC-16argued against and upheld
Security and Privacy Attributes. Provide the means to associate [organization-defined] with [organization-defined] for information in storage, in process, and/or in transmission; Ensure that the attribute associations are made and retained with the information; Establish

Labelling of information attaches classification attributes to information and assets.

6.7NIST800-AC-17argued against and upheld
Remote access

Remote working requires remote access to be authorised, protected and monitored.

8.1NIST800-AC-19argued against and upheld
Access control for mobile devices

User endpoint device control governs security of and access from mobile devices.

5.16NIST800-AC-2argued against and upheld
Account management

Identity management covers the full account life cycle from creation to removal.

5.18NIST800-AC-2argued against and upheld
Account management

Access rights provisioning, review and revocation is the account management activity.

8.3NIST800-AC-3argued against and upheld
Access enforcement

Information access restriction enforces access in line with the access control policy.

Claims that did not hold

244 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.

8.1NIST800-AC-11
Device lock

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.

8.3NIST800-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.

5.22NIST800-AC-20
Use of external systems

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.

5.20NIST800-AC-20
Use of external systems

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.

8.3NIST800-AC-6
Least privilege

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.

5.10NIST800-AC-8
System Use Notification. Display [organization-defined] to users before granting access to the system that provides privacy and security notices consistent with applicable laws, executive orders, directives, regulations, policies, standards, and guidelines and state that:

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.

8.15NIST800-AC-9
Previous Logon Notification. Notify the user, upon successful logon to the system, of the date and time of the last logon

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.

6.3NIST800-AT-6
Training feedback

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.

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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