9.1 Monitoring, measurement, analysis and evaluation

The organization must determine what is to be monitored and measured, including security processes and controls; which methods of monitoring, measuring, analysing and evaluating will give valid results (comparable and reproducible methods are considered valid); when monitoring and measurement are done; who does them; when results are analysed and evaluated; and who does that analysis and evaluation. Documented information must be available as evidence of results, and the organization must judge how well it performs on security and how effective the ISMS is.

Source: ISO/IEC 27001:2022, 9.1. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open ISO/IEC 27001:2022 in the compliance library.

Clauses 4 to 10 are the management-system requirements: none of them can be excluded when an organisation claims conformity. The 93 Annex A controls are a reference set: one may be excluded with a justification in the Statement of Applicability. Certification bodies assess conformity; the evidence lists here are what auditors commonly ask for, not a list the standard prescribes.