Tom C. enhanced the security of the KueueViz backend in the kubernetes-sigs/kueue repository by implementing strict HTTPS-only origin enforcement. He updated environment configurations and associated tests to ensure that only secure origins are permitted, aligning the backend’s allowed origins with the validateOrigin logic to prevent insecure cross-origin access. Working primarily with Go and YAML, Tom focused on backend development and API security, addressing integration points for dashboard and third-party workflows. His work improved the security posture of the system, demonstrating a methodical approach to tightening origin validation without disrupting existing compatibility or workflow requirements. Depth was focused on targeted security hardening.