Trust Services Criteria

Access to systems is controlled through role-based permissions and the principle of least privilege, ensuring users only have access necessary for their job functions. Sensitive systems require multi-factor authentication, and access rights are reviewed and updated quarterly to maintain security.

System changes follow a structured change management process, including documentation, managerial approval, peer review, and testing before deployment. Continuous monitoring is in place, with 24/7 logging and intrusion detection systems that alert security teams to suspicious activities in real time.