View source for ISO 27001/Chapter/4.4 Information security management system

<blockquote>The organization shall establish, implement, maintain and continually improve an information security management system, in accordance with the requirements of this document.</blockquote>'''Plain-language meaning'''

* '''Establish''' → Define the ISMS: set its     scope, policies, objectives, and resources.
* '''Implement''' → Put it into action: deploy     controls, train staff, manage risks.
* '''Maintain''' → Keep it running: monitor,     review, update procedures.
* '''Continually improve''' → Use audits, metrics,     and feedback to make it better over time.

Essentially, Clause 4.4 is the ''big-picture'' requirement that ties together all other clauses — it’s the “you must actually have an ISMS” statement, not just a plan for one.

'''Clause 4.4 – ISMS Audit Evidence Checklist'''
{| class="wikitable"
|'''Requirement'''
|'''What it Means in Practice'''
|'''Examples   of Audit Evidence'''
|-
|'''Established'''
|You have ''created'' an ISMS framework aligned  with ISO 27001.
|<nowiki>- Approved ISMS policy</nowiki>

- Documented ISMS scope (Clause 4.3)

- Risk assessment methodology

- Statement of Applicability (SoA)
|-
|'''Implemented'''
|The ISMS is ''operational'', not just documented.
|<nowiki>- Risk assessments and risk treatment plans executed</nowiki>

- Training records for employees

- Implemented controls (e.g., access control lists, incident response  procedures)

- Supplier security agreements
|-
|'''Maintained'''
|You keep the ISMS running and up to date.
|<nowiki>- Evidence of control monitoring logs</nowiki>

- Security incident reports and resolutions

- Access review records

- Patch management logs
|-
|'''Continually  Improved'''
|You use monitoring, audits, and feedback to make the  ISMS better.
|<nowiki>- Internal audit reports (Clause 9.2)</nowiki>

- Management review minutes (Clause 9.3)

- Corrective actions from nonconformities (Clause 10.2)

- Updated policies after lessons learned from incidents
|}

[[File:Planning:Planning Chapter 4.4 Information security management system 1755504986651.4 Information security management system 1755504986631.png|left|thumb|660x660px|PDCA cycle]]