Gary Taylor delivered targeted security hardening for the hmcts/azure-platform-terraform repository, focusing on cookie handling and firewall policy improvements. He addressed session cookie management for the et-pet-et3 demo environment and updated firewall rules to ensure essential analytics cookies were not blocked, maintaining data flow integrity. Using Terraform and HCL, Gary expanded the production admin IP allowlist and implemented firewall filtering fixes for ET1 and ET3, preventing legitimate traffic from being blocked while preserving access control and detection accuracy. His work demonstrated a solid understanding of cloud infrastructure, DevOps, and network security, with a focus on precise, environment-specific configuration changes.