In July 2025, Istvan Sumegi focused on security hardening for the hortonworks/cloudbreak-images repository by developing and integrating a custom SELinux policy for the user-data-helper.sh script. He transitioned the project from ad hoc restorecon notes to a policy-driven approach, leveraging SELinux policy language and Shell scripting to define strict access controls for script execution and log file handling. Istvan also automated policy file management using SaltStack, enabling repeatable and auditable deployments during cloud instance initialization. This work enhanced the security posture and regulatory compliance of cloud-init processes, demonstrating depth in DevOps, SELinux, and system administration practices.