An ISMS is a structured approach that enables organizations to manage their information security in a comprehensive manner. It encompasses policies, processes, and technical measures designed to systematically identify and mitigate risks.
At its core is a continuous improvement process: security measures are planned, implemented, reviewed, and regularly updated. This ensures that the level of security remains stable even in the face of new threats.
An ISMS serves as the foundation for implementing ISO 27001, which defines specific requirements for its establishment and operation.