How can a user be restricted to accessing integration events for selected integration systems?

The option focused on setting up integration system security segments is the correct approach to restrict a user's access to integration events for selected integration systems. This method involves creating specific security segments that define which integration systems a user can access. By establishing these segments, administrators can finely control permissions based on the needs and roles of different users, ensuring that sensitive data and functionality are only available to those authorized to interact with particular integration systems.

This detailed setup allows for a tailored security model that aligns with organizational policies and helps in minimizing potential risks associated with unauthorized access. Without such a defined security segment structure, it would be challenging to manage and enforce specific access controls effectively. This setup is crucial for maintaining the integrity and confidentiality of the integration events associated with various systems.