Infralink is a medium-sized IT consultancy firm headquartered in Dublin, Ireland.

Infralink is a medium-sized IT consultancy firm headquartered in Dublin, Ireland. It specializes in secure cloud infrastructure, software integration, and data analytics, serving a diverse client base in the healthcare, financial services, and legal sectors, including hospitals, insurance providers, and law firms. To safeguard sensitive client data and support business continuity, Infralink has implemented an information security management system (ISMS) aligned with the requirements of ISO/IEC 27001.

In developing its security architecture, the company adopted services to support centralized user identification and shared authentication mechanisms across its departments. These services also governed the creation and management of credentials within the company. Additionally, Infralink deployed solutions to protect sensitive data in transit and at rest, maintaining confidentiality and integrity across its systems.

In preparation for implementing information security controls, the company ensured the availability of necessary resources, personnel competence, and structured planning. It conducted a cost-benefit analysis, scheduled implementation phases, and prepared documentation and activity checklists for each phase. The intended outcomes were clearly defined to align security controls with business objectives.

Infralink started by implementing several controls from Annex A of ISO/IEC 27001. These included regulating physical and logical access to information and assets in accordance with business and information security requirements, managing the identity life cycle, and establishing procedures for providing, reviewing, modifying, and revoking access rights. However, controls related to the secure allocation and management of authentication information, as well as the establishment of rules or agreements for secure information transfer, have not yet been implemented. During the documentation process, the company ensured that all ISMS-related documents supported traceability by including titles, creation or update dates, author names, and unique reference numbers. Based on the scenario above, answer the following question.

Which approach did AegisCute use to implement its ISMS?