UK Cyber Essentials covers 10.8% of PCI DSS 4.0
27 of the 249 controls in PCI DSS 4.0 are already satisfied by evidence you collected for UK Cyber Essentials. 222 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 PCI DSS 4.0 your UK Cyber Essentials 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.
57 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.
Both require every permitted service or port to be approved with a documented business need.
Both require permissive inbound rules to be removed once no longer needed.
Both permit inbound traffic only where an approved documented business need exists.
Both require a firewall at the boundary between the internal network and the internet.
Both restrict inbound traffic from untrusted networks to approved documented rules only.
Both require host firewall controls on devices that also connect to untrusted networks.
Both require software that has reached end of support to be removed or segregated.
Both require confirmation that software and hardware in use remain vendor supported.
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.
Buy this crosswalk