Worked on enhancing security controls in the DiamondLightSource/dodal repository by upgrading the pre-commit credential detection tooling. The main feature involved replacing the existing Talisman hook with Gitleaks, a more robust solution for identifying sensitive credentials in code changes. This required updating the .pre-commit-config.yaml file to reference the new Gitleaks hook and removing the obsolete .talismanrc configuration. The work focused on improving preventive security measures and increasing CI reliability, aligning the repository with current best practices. The project utilized DevOps and security skills, with configuration changes implemented in YAML to ensure early detection of credentials in pull requests.