Azure Security Benchmark covers 20.7% of NIST SP 800-53 Rev 5
62 of the 300 controls in NIST SP 800-53 Rev 5 are already satisfied by evidence you collected for Azure Security Benchmark. 238 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 800-53 Rev 5 your Azure Security Benchmark 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.
192 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.
Documented identity and access guidance, policy and standards is the access control policy required.
Regular reconciliation of accounts and entitlements is the account review requirement.
Joiner mover leaver processing with access reviews is account management end to end.
A central identity system is where accounts are created, modified and disabled.
Role based access control enforcing granted permissions is access enforcement.
Conditional access enforces authorisation decisions at the point of access.
Private endpoints and service firewall rules constrain flows to platform services.
Subnet and security group rules enforce permitted information flows between zones.
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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