Investing in an Information Security Management System (ISMS) enhances organizational competitiveness and protects information assets. However, introducing an ISMS consumes significant resources; for instance, implementing an ISMS according to the ISO27001 standard involves documenting 116 different controls. This paper discusses how Kempower, a Finnish company, has effectively used generative AI to create and implement an ISMS, significantly reducing the resources required. This research studies how the use of generative AI can enhance the process of creating an ISMS. We conducted seven semi-structured interviews held with various stakeholders of the ISMS project, who had varying levels experience in cyber security and AI.